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ContextCapture | Descartes | Pointools | Orbit Wiki Combine Image Tool in Descartes
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    Combine Image Tool in Descartes

      Product(s): Bentley Descartes for MicroStation
      Version(s): 08.11.09.601
      Environment: N\A
      Area: Tools
      Subarea: N\A

    Exercise displaying output raster image usimg Combine Image Tool

    Background

    Found in the Raster Manager Edit menu, Combine Images is used to perform a logical operation on a selected area of two specified rasters and places the resulting data on a destination raster.
     
     

    Steps to Accomplish

     

    The logical operations are:

     

     

    ·         And - The destination file contains only the overlapping regions of the two source images.

     

    ·         Or - The destination file will contain all of the raster data from both source files.

     

      

    ·         Xor - The destination file contains only those regions that do not overlap one another.

     

    ·         Compare - The destination file contains only those regions of the first source file that are not overlapped by the second source file.

     

     

    In the following set of exercises, the logical operations will be explored.

     

    è Exercise: AND Operation

    1    Open COMBINE_IMAGES.DGN and explore the contents of view 1. SOURCE_A.iTIFF is displayed and contains a single area of raster data.

    SOURCE_B.iTIFF is turned off in view 1 and also contains a single area of raster data.

    DESTINATION_A.iTIFF is turned off in view 1 and is an empty raster file.

     

                       

    Source A                       Source B                    Source A and B

     

     

    2         Enable the display of the three images in View 1.

    3         From the Raster Manager Edit menu, select Combine Images with the following settings:

    Logical Operation: And

    Area: Block

    Source 1: SOURCE_A.iTIFF

    Source 2: SOURCE_B.iTIFF

    Destination: DESTINATION_A.iTIFF

    Work in Image Plane: Off

     

    4         Follow the prompts and define a block to surround the raster data.

    5         Turn off the display of the source files to view the results.

     

    •        Undo the operation.

     

    è Exercise: OR, Xor, and Combine operations

    1    Results when repeating the previous exercise using the OR, XOR and Combine operators.

     

     

                                          

    OR                                       Xor                              Combine

     

     

      Original Author: Frank McAllister
    • Descartes
    • 08.11.09.601
    • Bentley Descartes for MicroStation
    • en
    • SELECTsupport
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    • fmcallis Created by fmcallis
    • When: Tue, Mar 8 2016 11:47 AM
    • Pascal Cloutier Last revision by Bentley Colleague Pascal Cloutier
    • When: Thu, Mar 19 2020 10:07 AM
    • Revisions: 8
    • Comments: 0
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