SuperEdit provides tools to control and modify raster images. You can use the Image Properties dialog (called from CDM Properties option) and its subcommands to modify various parameters of the raster image. The Move command changes image insertion point (origin). The Clear command clears chosen rectangular or polygonal areas of raster images. Other raster editing commands are: Crop , Filter , Rotate , Resize , Cut , Copy , Paste , Merge and Calibrate . All raster-editing commands can be accessed from Raster toolbar or from main Raster menu.

As at the beginning of the previous section, open the office.tif , and then use Document - Add Subdocument option to add office.dwg vector drawing. Use Zoom Window button to show the right lower corner of the floor, where the new walls and doors have been drawn. To define a zoom area, move mouse cursor in its one corner, press the left mouse button and drag the cursor to the other corner of the area you want to zoom, then release the button.

Click the Clear polygon button in the Raster toolbar and define a polygon that fences around those parts of the background drawing that need to be removed, as shown in the figure below. Define subsequent vertices using left mouse button clicks. Choose OTM End polygon option that ends drawing a polygon (you may choose OTM Step back to go back to previous vertices). If you need to redefine one or more vertices after finishing the polygon, simply drag their red grips to desired positions. To stop entering subsequent polygons, click the right mouse button once more and choose the OTM Accept option.

SuperEdit edits the image file and regenerates the screen. Click the Undo button on the Main toolbar to see the office.tif before the modification. Then, click the Redo button to see the modified drawing again. Right-click the office.tif node in the TCD Contents window, and choose the CDM Save As... option. Save the modified image under a new name, e.g. office3.tif .