When an Image terrain is selected, the SELECTION - TOOLS menu becomes available. The TOOLS menu contains tools that allow you to change the ordering of your Image terrains, clip the Image terrains, or set other transparency or NoData values.
Mosaic Tools Group
Icon | Name | Description |
---|---|---|
![]() | Move Up | Moves the currently selected Image terrain up in the order of displayed Image terrains. Any Image terrains displayed are shown in a set order, from top to bottom on all areas of overlap. |
![]() | Move Down | Moves the currently selected Image terrain down in the order of displayed Image terrains. Any Image terrains displayed are shown in order, from top to bottom on all areas of overlap. |
![]() | Clip | The Clip function cuts an Image terrain down to the size of the selected Boundary item. Both the Boundary item and the Image terrain need to be selected to activate the Clip tool. Once used, any Image terrain data outside of the Boundary is removed. |
![]() | Unclip | The Unclip icon when you select a clipped Image Terrain. When you Unclip the Image Terrain, the terrain data that was removed by the Clip function—outside of the Boundary—is returned to its original state. |
Transparency Group
Icon | Name | Description |
---|---|---|
- | Transparency | Sets a transparency level for the selected terrain. Any other Image terrain beneath the Image terrain becomes visible. |
- | NoData | Allows you to set NoData values for your Image terrain, including the color of NoData values and the tolerance. |
- | Color | Allows you to set the Color of your NoData values. Most photogrammetry software sets the NoData color to black. When imported into Virtual Surveyor, that color is assigned as the NoData value, and any areas on the image are considered NoData. For cases where the NoData value color was set to another color such as White, the color can be set in Virtual Surveyor. |
- | Tolerance | As the NoData value in Virtual Surveyor is based on color, the tolerance allows you to increase the color range around your selected color that is included as a NoData value. |