Bentley Descartes V8i (SELECTseries)

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EnvisionCAD – Education
Bentley Descartes
MicroStation®V8i (SELECTseries)
Exercise Workbook
Prepared by:
EnvisionCAD
Copyright © 2013
EnvisionCAD– About Us
EnvisionCAD is a provider of training solutions for MicroStation® and
select InRoads® products. We also use our expertise to assist organizations
managing data and workflow tasks via consulting and/or outsourced CAD
management roles. Additionally, we provide visualization services for
design concepts and alternatives. Services include but are not limited to:
Illustrations, solar studies, line-of-sight studies, and animations.
We offer training at our headquarters in Madison, WI, at satellite locations
around the country, on-site at your location or by virtual classrooms.
For additional information about our services, prices, or training schedules,
visit our website at EnvisionCAD.com or call 1-608-836-3903.
EnvisionCAD– Guaranteed Training
Our guarantee is simple.
Any student may retake any class, at any time, and for any
reason without additional charge.
Bentley Systems, Inc.
Bentley is a technology provider for software solutions used to design,
engineer, build, and operate large constructed assets such as roadways,
bridges, buildings, industrial facilities, power plants, and utility networks.
Bentley's reach spans the globe, serving more than 300,000 professionals
and more than 20,000 companies and organizations.
To contact Bentley visit www.Bentley.com or call 1-800-BENTLEY.
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Copyright
Warning: Copyright 2013 The Envision Group, Inc. dba EnvisionCAD Madison, Wisconsin.
ALL RIGHTS RESERVED WORLDWIDE. All portions of this manual
including printed material, electronic data, notes, and supplemental
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We vigorously protect our copyright interests. By possessing this material,
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Trademarks
MicroStation, InRoads, InRoads Site, InRoads Survey, InRoads Bridge,
InRoads Storm & Sanitary, InRoads Rail, SelectCAD, GEOPAK and MX
Roads are registered trademarks of Bentley Systems, Inc. AutoCAD is a
registered trademark of Autodesk, Inc. Windows is a registered trademark of
Microsoft Corporation. Other brands and product names are trademarks of
their respective owners.
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Introduction
Welcome to Bentley Descartes for MicroStation V8i (SELECTseries). This
course is for MicroStation users who want to incorporate raster imagery into
their MicroStation drawings. The class will cover tools and options available in
MicroStation Raster Manager as well as the raster editing and manipulation
tools installed by Bentley Descartes. In addition to working with standard raster
images this course also incorporates Point Clouds, Scalable Terrain Models, and
Raster Surfaces.
EnvisionCAD and Bentley assume no responsibility for errors that may appear
in this software or occur as a result of its use.
Document Conventions
Several conventions are used throughout this document to indicate actions to be
taken or to highlight important information. The conventions are as follows:
Item
Meaning
Place Text
a command name or a file to select
Tools > Options
a command path to select – usually from a pulldown menus
Key-In
a prompt to enter data with the keyboard
Document name
italics in this style are used when referring to
another document
Note:
Text information about a command or process
to pay particular attention to
Emphasis
an important word or phrase
1. Numbered Steps
an action to be performed as part of a lab
activities
<D>or Data
press the data button on the mouse
<R>or Reset
press the reset button on the mouse
<T>or Tentative
press the tentative button on the mouse
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Table of Contents
TABLE OF CONTENTS
EnvisionCAD– About Us ............................................................................. ii EnvisionCAD– Guaranteed Training ......................................................... ii Bentley Systems, Inc. .................................................................................... ii Copyright...................................................................................................... iii Limitation of Liability ................................................................................. iii Trademarks .................................................................................................. iii Introduction ................................................................................................. iv Document Conventions ............................................................................... iv 1. Raster Data Overview ................................................................... 1 Vector Data Review .......................................................................................1 Common Vector Formats ................................................................................................. 1 Raster Data.....................................................................................................2 Raster Terminology .......................................................................................................... 2 Encoding/Compression Schemes ..................................................................................... 4 Common Raster File Types ............................................................................................. 5 Scanning .........................................................................................................7 Resolution .......................................................................................................................... 7 File Type ............................................................................................................................ 7 File Conversions.............................................................................................8 Single File Conversion ...................................................................................................... 8 Batch Convert ................................................................................................................... 8 Lab 1 – Raster Data Overview .....................................................................9 Objectives .......................................................................................................................... 9 Open MicroStation ........................................................................................................... 9 Review Monochrome Resolution Quality ..................................................................... 10 Review File Sizes of Monochrome Images .................................................................... 11 Convert Monochrome Images........................................................................................ 11 Review Color Resolution Quality .................................................................................. 13 Review File Sizes of Color Images ................................................................................. 14 Convert Color Images..................................................................................................... 14 2. Raster Manager Basics ............................................................... 17 Raster Manager Dialog ...............................................................................17 Raster Manager Tool Box ...........................................................................17 Show Reference Hierarchy............................................................................................. 18 Flat Mode ......................................................................................................................... 18 New ................................................................................................................................... 18 Attach ............................................................................................................................... 19 Reload .............................................................................................................................. 20 Raster Selection ............................................................................................................... 20 Clip ................................................................................................................................... 20 Modify Clip...................................................................................................................... 21 Unclip ............................................................................................................................... 21 Version 1.0
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Transform ........................................................................................................................21 Move .................................................................................................................................22 Scale..................................................................................................................................22 Rotate ...............................................................................................................................22 Mirror ..............................................................................................................................23 Warp ................................................................................................................................23 Fit to View........................................................................................................................23 Actual Resolution (1:1) ...................................................................................................24 Contrast/Brightness ........................................................................................................24 Raster Manager Preferences ......................................................................25 General .............................................................................................................................25 Default Attributes ...........................................................................................................26 Georeference ....................................................................................................................27 Memory ............................................................................................................................28 Cache Manager ...............................................................................................................29 Lab 2 – Raster Manager Basics ..................................................................30 Objectives.........................................................................................................................30 Open the Design File .......................................................................................................30 Attach a Raster Image ....................................................................................................30 Set Attachment Preferences ...........................................................................................32 Reattach the Raster Image .............................................................................................33 Clip the Raster Image .....................................................................................................34 3. Bentley Descartes Basics ............................................................. 37 Loading Bentley Descartes..........................................................................37 Descartes Additions to Raster Manager ....................................................38 Additional File Types ..................................................................................39 Descartes Preferences ..................................................................................40 General .............................................................................................................................40 Vectorize ..........................................................................................................................41 Workspace Configuration Variables .........................................................47 Descartes Variables .........................................................................................................47 Raster Manager Variables .............................................................................................47 Upgrading from MicroStation V8 and I/RAS B .......................................49 Attachment Level ............................................................................................................49 View Rotation ..................................................................................................................49 Image Rotation ................................................................................................................49 Lab 3 – Bentley Descartes Basics ...............................................................50 Objectives.........................................................................................................................50 Start Descartes with Keyin .............................................................................................50 Start Descartes Automatically .......................................................................................51 Descartes Preferences .....................................................................................................52 4. Image Display............................................................................... 54 Descartes Raster Display ............................................................................54 Bring to Front ..................................................................................................................54 Page vi
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Send to Back .................................................................................................................... 54 Fit to View ....................................................................................................................... 54 Align View to Raster ....................................................................................................... 55 Actual Resolution (1:1) ................................................................................................... 55 Contract/Brightness ........................................................................................................ 55 Invert ............................................................................................................55 Display Planes ..............................................................................................56 Binary Display .............................................................................................57 Enhanced Binary............................................................................................................. 57 Foreground/Background Color ..................................................................................... 57 Non-Binary Image Display .........................................................................58 Tint ................................................................................................................................... 58 Transparency .................................................................................................................. 58 Image Attributes ..........................................................................................59 Lab 4 – Image Display .................................................................................60 Objectives ........................................................................................................................ 60 Open MicroStation ......................................................................................................... 60 Modify Display of Binary Images .................................................................................. 60 Modify Display of Color Images .................................................................................... 63 5. Enhance Image ............................................................................ 67 Enhance Image Toolbox..............................................................................67 Histogram ........................................................................................................................ 67 Contrast Stretch .............................................................................................................. 70 Density Slicing ................................................................................................................. 71 Blur................................................................................................................................... 72 Sharpen ............................................................................................................................ 73 Smooth ............................................................................................................................. 74 Detail ................................................................................................................................ 74 Edge Enhance .................................................................................................................. 74 Find Edges ....................................................................................................................... 74 Color Table ...................................................................................................................... 74 Lab 5 – Enhance Image ...............................................................................75 Objectives ........................................................................................................................ 75 Open MicroStation ......................................................................................................... 75 Highlight Areas Using a Histogram .............................................................................. 76 Create Density Slices....................................................................................................... 77 Adjust Image Quality ..................................................................................................... 78 6. Image Editing ............................................................................... 80 Color Masks .................................................................................................80 Add to Mask .................................................................................................................... 80 Subtract from Mask........................................................................................................ 81 Hilite Mask ...................................................................................................................... 81 Color Mask Dialog .......................................................................................................... 81 Touch-up Toolbox .......................................................................................82 Version 1.0
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Paint .................................................................................................................................82 Erase .................................................................................................................................83 Cleanup ............................................................................................................................83 Flood .................................................................................................................................83 Cut/Copy/Paste Toolbox .............................................................................84 Cut ....................................................................................................................................84 Copy Image Area ............................................................................................................84 Paste Image Area ............................................................................................................85 Paste From File ...............................................................................................................85 Dynammic Raster Snap ..............................................................................86 Line Snap .........................................................................................................................86 Intersection Snap ............................................................................................................86 Outline Snap ....................................................................................................................86 Lab 6a – Binary Image Editing ..................................................................87 Objectives.........................................................................................................................87 Open MicroStation..........................................................................................................87 Configure Raster Snap ...................................................................................................87 Remove Speckles .............................................................................................................88 Copy and Paste ................................................................................................................89 Lab 6b – Color Image Editing ....................................................................91 Objectives.........................................................................................................................91 Open MicroStation..........................................................................................................91 Create a Color Mask .......................................................................................................91 Edit Using a Color Mask ................................................................................................93 7. Image Transforms ....................................................................... 95 Descartes Raster Control Toolbox .............................................................95 Transform ........................................................................................................................95 Move .................................................................................................................................96 Scale..................................................................................................................................96 Rotate ...............................................................................................................................96 Mirror ..............................................................................................................................97 Warp ................................................................................................................................97 Square ..............................................................................................................................97 Crop..................................................................................................................................98 Resize Canvas ..................................................................................................................98 Merge ...............................................................................................................................98 Corridor ...........................................................................................................................99 Clip .................................................................................................................................100 Modify Clip ....................................................................................................................100 Unclip .............................................................................................................................100 Lab 7a – Square and Crop Images ..........................................................101 Objectives.......................................................................................................................101 Square an Image using Raster Manager .....................................................................101 Square and Crop an Image using Descartes ...............................................................103 Lab 7b – Merge and Corridor Images .....................................................105 Objectives.......................................................................................................................105 Page viii
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Combine Images using the Merge Tool....................................................................... 105 Combine Images using the Corridor Tool .................................................................. 107 8. Local Transforms ...................................................................... 109 Local Transform Toolbox .........................................................................109 Local Copy ..................................................................................................................... 109 Local Move .................................................................................................................... 109 Local Scale ..................................................................................................................... 109 Local Rotate................................................................................................................... 110 Local Mirror.................................................................................................................. 110 Local Warp .................................................................................................................... 110 Cover Up Area .............................................................................................................. 110 Clone Area ..................................................................................................................... 110 Lab 8 – Local Transforms ........................................................................111 Open MicroStation ....................................................................................................... 111 Use the Local Mirror Tool ........................................................................................... 112 Use the Local Copy Tool............................................................................................... 113 Use the Clone Area tool ................................................................................................ 114 9. Geographic Transforms ............................................................ 117 The Geographic Toolbox ..........................................................................117 Geographic Coordinate System ................................................................................... 117 Global Positioning System (GPS) ................................................................................ 123 Export Google Earth (KML) File ................................................................................ 123 Capture Google Earth Image ....................................................................................... 124 Define Placemark Monument ...................................................................................... 125 Synchronize Google Earth View .................................................................................. 126 Follow Google Earth View ........................................................................................... 126 Google Earth Settings ................................................................................................... 127 Play Camera Animation In Google Earth .................................................................. 127 Open Location in Google Maps ................................................................................... 128 Longitude, Latitude Coordinate Readout ...............................................129 Longitude, Latitude Coordinate Input ....................................................129 ArcView Shapefile Import ........................................................................130 Reference Attachments .............................................................................131 “On-the-fly” Reprojection............................................................................................ 131 Permanent Reprojection .............................................................................................. 131 Shapefile Attachments .................................................................................................. 132 Raster Manager .........................................................................................134 Create New WMS Server Attachment ........................................................................ 134 Reconnect Previous WMS Attachment ....................................................................... 138 Lab 9a – Working with Geographic Coordinate Systems .....................139 Objectives ...................................................................................................................... 139 Open the Design File ..................................................................................................... 139 Define Coordinate System from Library .................................................................... 139 Define Coordinate System from a File ........................................................................ 142 Define Coordinate System from a Reference .............................................................. 144 Version 1.0
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Define Custom Coordinate System for Grid-to-Ground Transformation ...............145 Lab 9b – Attaching WMS Server Images................................................148 Objectives.......................................................................................................................148 Open the Design File .....................................................................................................148 Define Coordinate System from Library ....................................................................148 Attach ArcView Shapefiles ...........................................................................................149 Create a WMS Server Connection ..............................................................................151 10. Combining Images ..................................................................... 155 Combine Images ........................................................................................155 Logical Operators .........................................................................................................155 Mosaic .........................................................................................................156 Balance Tone .................................................................................................................156 Define Seam ...................................................................................................................157 Lab 10a – Combine Images ......................................................................158 Objectives.......................................................................................................................158 Open MicroStation........................................................................................................158 Combine Using AND Operator ....................................................................................159 Combine Using OR Operator ......................................................................................160 Combine Using XOR Operator....................................................................................161 Combine Using Compare Operator.............................................................................162 Lab 10b – Mosaic Images..........................................................................163 Objectives.......................................................................................................................163 Open MicroStation........................................................................................................163 Balance Tones Between Images ...................................................................................163 Edit Seams Between Images .........................................................................................164 11. Rasterizing Vector Data ............................................................ 166 Rasterize Toolbox ......................................................................................166 Stamp Vector .................................................................................................................166 Merge .............................................................................................................................166 Match Line Mapping Settings ......................................................................................166 Line Mapping Settings ..................................................................................................167 Lab 11 – Rasterizing Vector Data ............................................................168 Objectives.......................................................................................................................168 Open MicroStation........................................................................................................168 Rasterize multiple elements using the Merge tool ......................................................168 Manually Stamp Vectors into an Image ......................................................................171 Automatically Stamp Vectors into an Image ..............................................................173 12. Vectorizing Raster Data ............................................................ 174 Vectorize Toolbox ......................................................................................174 Place Element ................................................................................................................175 Continue Element..........................................................................................................176 Insert Element ...............................................................................................................176 Convert Lines ................................................................................................................177 Convert Area .................................................................................................................177 Page x
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Convert All Connected Lines ....................................................................................... 178 Convert Contour Lines ................................................................................................. 179 Convert Circle ............................................................................................................... 179 Generalize Vector ......................................................................................................... 180 Function Keys ............................................................................................180 Nodes ...........................................................................................................181 Place Nodes .................................................................................................................... 181 Move Nodes ................................................................................................................... 181 Delete Nodes .................................................................................................................. 181 Note File Toolbox .......................................................................................................... 182 Text/Cells Toolbox .....................................................................................182 Select Horizontal Text .................................................................................................. 182 Select Oriented Text ..................................................................................................... 183 Select Multiple Text ...................................................................................................... 183 Delete Text Selection ..................................................................................................... 183 Convert Text.................................................................................................................. 183 Text Settings .................................................................................................................. 184 Convert Cell................................................................................................................... 184 Convert Horizontal Cell ............................................................................................... 184 Convert Oriented Cell .................................................................................................. 185 Lab 12a – Heads-up Digitizing .................................................................186 Objectives ...................................................................................................................... 186 Open MicroStation ....................................................................................................... 186 Set Descartes Preferences ............................................................................................. 186 Digitize Line Segments ................................................................................................. 188 Digitize Arc Segments ................................................................................................... 189 Digitize Stream Segments ............................................................................................. 192 Lab 12b – Automatic Vectorization .........................................................195 Objectives ...................................................................................................................... 195 Open MicroStation ....................................................................................................... 195 Configure Settings......................................................................................................... 195 Automatic Multiple Line Vectorization ...................................................................... 197 Automatic Single Line Vectorization .......................................................................... 198 Automatic Heads-up Digitizing.................................................................................... 199 Convert Text.................................................................................................................. 202 13. Image Registration .................................................................... 205 Register Toolbox ........................................................................................205 Place Control Points ..................................................................................................... 205 Move Control Points ..................................................................................................... 205 Delete Control Points .................................................................................................... 205 Register Dialog .............................................................................................................. 206 Resample Image ............................................................................................................ 206 Resampling Dialog ........................................................................................................ 206 Copy Vector ................................................................................................................... 207 Move Vector .................................................................................................................. 207 Lab 13 – Image Registration ....................................................................208 Version 1.0
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Objectives.......................................................................................................................208 Open MicroStation........................................................................................................208 Place Control Points......................................................................................................208 Save Control Points.......................................................................................................213 Resample Image ............................................................................................................213 14. Image Draping ........................................................................... 215 Raster Manager .........................................................................................215 Assign Material ..........................................................................................216 Render the View ........................................................................................217 Lab 14 – Image Draping ...........................................................................219 Objectives.......................................................................................................................219 Open MicroStation........................................................................................................219 Prepare the Drawing .....................................................................................................219 Assign the Material .......................................................................................................221 Render the View ............................................................................................................223 15. Point Clouds ............................................................................... 224 Point Cloud Overview ...............................................................................224 Attach .............................................................................................................................224 Detach ............................................................................................................................225 Clip .................................................................................................................................225 Delete Clip......................................................................................................................225 Presentation ...................................................................................................................226 Descartes Additions to the Point Cloud Dialog .......................................227 Point Cloud – Advanced Toolbox ............................................................227 Classification .................................................................................................................227 Tile Export .....................................................................................................................228 Drape Element ...............................................................................................................228 Snap Element .................................................................................................................228 Fit Plane .........................................................................................................................229 Fit Cylinder....................................................................................................................229 Smart Snap ....................................................................................................................229 Visual Explorer .............................................................................................................229 Lab 15 – Point Clouds ...............................................................................229 Objectives.......................................................................................................................230 Open MicroStation........................................................................................................230 Attach and Evaluate a Point Cloud .............................................................................230 Change Point Cloud Classifications.............................................................................232 Tile Export .....................................................................................................................234 16. Scalable Terrain Models ........................................................... 238 Scalable Terrain Model Dialog.................................................................238 Attach .............................................................................................................................238 Detach ............................................................................................................................239 New .................................................................................................................................239 Modify ............................................................................................................................239 Page xii
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Check if up-to-date ....................................................................................................... 240 Generate......................................................................................................................... 240 Clip ................................................................................................................................. 240 Modify Clip.................................................................................................................... 241 Unclip ............................................................................................................................. 241 Set Draping .................................................................................................................... 241 Fit to View ..................................................................................................................... 242 Creating an STM from Point Cloud ........................................................242 Element Information .................................................................................245 Display Contours........................................................................................................... 245 Display Triangles .......................................................................................................... 245 Image Draping............................................................................................................... 246 Export to MicroStation Terrain Model ...................................................247 Lab 16 – Scalable Terrain Models ...........................................................248 Objectives ...................................................................................................................... 248 Open MicroStation ....................................................................................................... 248 Create a Scalable Terrain Model ................................................................................. 248 Add Breaklines .............................................................................................................. 252 Configure Scalable Terrain Model Display Properties.............................................. 253 Export Scalable Terrain Model ................................................................................... 255 17. Raster Surfaces .......................................................................... 257 Attach Raster Surface ...............................................................................257 Thematic Set...............................................................................................258 Generate Classes ........................................................................................................... 259 Add Class ....................................................................................................................... 259 Insert Classes ................................................................................................................. 259 Ramp Colors.................................................................................................................. 259 Remove Selected ............................................................................................................ 259 Lab 17 – Raster Surfaces ..........................................................................260 Objectives ...................................................................................................................... 260 Open MicroStation ....................................................................................................... 260 Attach a Raster Surface................................................................................................ 260 Create an Elevation Classification Style ..................................................................... 261 Reuse Classifcation Styles ............................................................................................ 262 18. Texture Tools ............................................................................. 264 Texture Tools Toolbox ..............................................................................264 Assign to Area ............................................................................................................... 264 Warp to Area ................................................................................................................. 264 Mosaic Area ................................................................................................................... 265 Stretch to Area .............................................................................................................. 266 Convert to Advanced Texture ...................................................................................... 266 Start Editing .................................................................................................................. 266 End Editing.................................................................................................................... 266 Convert to Texture........................................................................................................ 266 Lab 18 – Texture Tools .............................................................................267 Version 1.0
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Objectives.......................................................................................................................267 Open MicroStation........................................................................................................267 Assign Shapes ................................................................................................................267 Warp Images to Shapes ................................................................................................268 19. Printing ....................................................................................... 272 Image Properties ........................................................................................272 Binary Images................................................................................................................272 Color/Grayshade Images ..............................................................................................273 Raster Quality Factor................................................................................273 MicroStation Printing ...............................................................................274 Print Driver Settings .....................................................................................................274 Print Dialog Settings .....................................................................................................276 Print Style Settings ........................................................................................................277 IPlot .............................................................................................................277 Lab 19 – Printing .......................................................................................278 Objectives.......................................................................................................................278 Open MicroStation........................................................................................................278 Print at Full Resolution ................................................................................................278 Print at Half Resolution ................................................................................................280 Page xiv
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14. Image Draping
Draping images attached via Raster Manager has become a relatively easy task. Attached
rasters can be used as materials and applied to a 3D surface. To illustrate the process we
will use a raster image of the earth and apply it to a 3D sphere.
Raster Manager
To allow an image to be used as a material for draping there are a few steps to
complete in Raster Manager.
1. Attach the image to be draped on the 3D object/surface.
2. <R> in the column header and turn on the column display for
Draping.
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3. Toggle On the Draping option for the attached image.
Assign Material
1. In the Tasks dialog, expand the Visualization task and locate the
Materials tools.
2. Select the Assign Material tool.
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3. In Assign Material tool settings window, <D> on the open icon next
to the Palette drop-down. In the Open Palette dialog, select
Dcdrape.pal.
4. Change the Material setting to dcdrape.
5. <D> on the 3D surface object on which to drape the raster image.
Render the View
1. Change the view display style to Smooth: Shadows.
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2. The image is displayed draped on the surface.
Note: If the image appears too dark, adjust the lighting using the Adjust View
Brightness setting.
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Lab 14 – Image Draping
Objectives
The purposes of this lab are to:

Configure raster options in the Print dialog

Configure raster options in the print driver
Open MicroStation
1. Launch MicroStation using the EnvisionCAD icon.
2. In the MicroStation Manager dialog, change the
following settings:
a. Set the User workspace to EnvisionCAD
b. Set the Project workspace to EnvisionCAD-Descartes
c. Set the Interface to EnvisionCAD
d. Set the directory to
C:\EnvisionCAD\MicroStation\Descartes
3. Select the file named:
Project_Drape.dgn
4. Open Raster Manager.
Prepare the Drawing
1. There are two images attached that are not displayed. See if you can
get the images to display. If you have successfully displayed the
images, move ahead to step 5.
2. The images are attached at an elevation outside the active clipping
plane. Select Display > Fit Rasters to View from the Raster
Manager menu bar.
3. In the tool settings window,
toggle on the option to
Expand Clipping Planes.
4. <D> anywhere in the view.
5. The images are displayed. Select the MicroStation Fit View tool to
fit the refit the view.
6. Window in on the design approximately as shown.
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7. Turn on the Draping column in Raster Manager if it is not displayed.
<R> in the column header and turn on the column display for
Draping.
8. Toggle on the Draping checkbox for the two attachments.
Lab Continues.
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and Autodesk products makes us the perfect partner for
bringing out your efficiency, productivity, and profitability.
Check envisionCAD.com/training.
PROGRAMMING
MANUALS
Eliminate tedious and repetitive tasks with custom
programming that will maximize your productivity.
You’ll reduce errors, add new functionality, and bring
integration of Autodesk and Bentley products
to your other applications.
Our highly-qualified staff with extensive hands-on
experience has authored manuals that bring you what
you need to know, tailored for the real-world user.
Covering primarily Bentley products, choose from
print, eBook, and video formats.
8517 Excelsior Drive, Suite 102, Madison, WI 53717-1995
608-836-3903 . www.envisioncad.com
SEE THE CAD POSSIBILITIES.™
© 2013 EnvisionCAD
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