Gradient Colors Representation/Color Table

Instructions for use

Gradient Colors is a common way of visual expression, which expresses and distinguishes different attributes of 3D Data through a certain order of color change or shade. The platform supports the setting of parameters such as color table, transparency, display area, and maximum/minimum visible values for Model Dataest, Oblique Photography Model, point cloud 3D Tiles data, and TIN Terrain, so as to realize the expression of Gradient Colors for models; In addition, the 3D grid body Data Settings color table is supported. The effect drawing of the TIN Terrain Gradient Colors is as follows:

Function entrance

  • Select Model in Layer Manager:/Tile/Terrain Layer-> Right click-> Context Menu and select "Layer Properties".

Depending on the Layer type, a slightly different Layer Properties panel is displayed, as shown in the following figure. The From Left to Right are Point Cloud Tiles and Oblique Photography Model, TIN Terrain, Model Dataest, and the Layer Properties panel for grid volume data.

Parameter Description：

  • Display area: Point cloud cache, Oblique Photography Model, and TIN Terrain When setting Gradient Colors, you can customize the area.
    • Show All: "Show All" by default, that is, all the layer models participate in the expression of Gradient Colors.
    • Draw Region: After this item is checked, move the mouse to the scene area to change to the editing line status, and click to draw a polygon region on the model, indicating that the model in the polygon region displays Gradient Colors, and the model outside the region does not display Gradient Colors.
    • Select Region: After checking this item, activate the drop-down box of "Select Region from Dataset" "and select Datasource, Face/3D Region Dataset opened by Current Workspace. When the Region Dataset has multiple polygons, the polygon with the lowest SmID value displays Gradient Colors, and the other polygons have no effect.
  • Display Mode: four modes are provided: Not Display, Line Fill, Face Fill and Line and Face Fill. Click the drop-down box on the right to select.
    • Do not display: It is not displayed by default, that is, Gradient Colors will not be expressed.
    • Line Fill: Gradient Colors is expressed by displaying isolines.
    • Face filling: Gradient Colors is expressed by face filling.
    • Line and Face Fill: Gradient Colors are expressed by contour lines and face fills.
  • Line color: Click the color drop-down box on the right and select the Color Scheme of the contour line.
  • Color Scheme: Click the color drop-down box on the right and select the color scheme of the filling surface. See the Color Table Settings dialog box table for more information.
  • Transparency: Set the transparency, and the value range is 0-100. The default transparency is 0, which is completely opaque; as the number increases, it becomes more and more transparent; the maximum value is 100, which is completely transparent.
  • Minimum value of color table: Enter a number to set the elevation/point cloud intensity value corresponding to the leftmost color of the texture color table. The default value is the minimum value of the model elevation/point cloud intensity value.
  • Maximum value of color table: Enter a number to set the elevation/point cloud intensity value corresponding to the rightmost color of the texture color table. The default value is the minimum value of the model elevation/point cloud intensity value.
  • Minimum visible value: Set the minimum value of the model elevation/point cloud intensity value involved in the expression of Gradient Colors. The default value is the minimum value of the model elevation/point cloud intensity value. Models smaller than this value do not display Gradient Colors.
  • Maximum Visible Value: Set the maximum value of the model elevation/point cloud intensity value represented by Gradient Colors. The default value is the maximum value of the model elevation/point cloud intensity value. Models larger than this value do not display Gradient Colors.
  • Contour Distance: Enter a number to set the distance between contours. The default value is 100 meters, which means that a contour line is drawn every 100 meters.
  • Sampling mode: provides two modes of adjacent sampling and linear sampling.
  • Volume Data: Volume data parameters are the results of Overlay voxel grids to generate caches. Different volume data parameters can be selected to express different attribute fields. See the Voxel Raster Overlay Model Tiles for details.