Hypsometric Setting/Color Table

Usage Instructions

Hypsometric setting is a common visualization technique. It expresses and distinguishes different attributes of 3D data through a specific color variation sequence or tonal depth. The platform supports setting parameters such as color table, transparency, display area, maximum/minimum visible values for model datasets, oblique photogrammetry 3D models, point cloud 3D tile data, LAS layers, and TIN terrains to achieve hypsometric representation. Additionally, it supports setting color tables for 3D raster volume data.

The effect of hypsometric setting for a TIN terrain is shown below:

Function Entrances

  • Layer Manager->Right-click menu of Model/Tile/LAS Layer->Layer Properties->Layer Properties Panel->Hypsometric Setting
  • Layer Manager->Right-click menu of TIN Terrain Tile Layer->Properties->Properties Panel->Hypsometric Setting

Parameter Description

Depending on the layer type, slightly different layer property panels will be displayed. As shown below, from left to right are the layer property panels for point cloud tiles and oblique photogrammetry models, TIN terrain and model datasets.

 
  • Feature Value Field: When setting hypsometric coloring for a LAS layer, you can choose different feature value fields.
    • Height: Performs hypsometric setting based on the height values of the data. Color gradients represent elevation changes in the data.
    • Classification: Assigns different colors based on data classification (e.g., ground, vegetation, building), useful for quickly identifying feature types.
    • Intensity: Performs hypsometric setting based on the intensity values of the data. Color gradients represent changes in point cloud return intensity.
  • Display Area: When setting hypsometric coloring for point cloud tiles, oblique photogrammetry models, or TIN terrains, you can define a custom area.
    • Show All: Default is "Show All," meaning all models in the layer participate in the hypsometric representation.
    • Draw Area: After checking this option, the mouse cursor changes to edit/draw line mode when moved over the scene area. You can click to sketch a polygon area on the model, indicating that hypsometric coloring will be displayed within this polygon area and not outside it.
    • Select Area: After checking this option, the dropdown menu "Select Area from Dataset" is activated. Choose an open data source and a polygon/3D polygon dataset from the current workspace. If the polygon dataset contains multiple polygons, the polygon with the smallest "SmID" value will be used for hypsometric display; other polygons will not take effect.
  • Display Mode: Sets the display mode for hypsometric representation.
    • No Display: Default is no display, meaning no hypsometric representation is applied.
    • Line Fill: Uses contour lines for hypsometric representation.
    • Face Fill: Uses area fill for hypsometric representation.
    • Line and Face Fill: Uses both contour lines and area fill for hypsometric representation.
  • Line Color: Click the color dropdown box on the right to select a color scheme for the contour lines.
  • Color Table: Click the color dropdown box on the right to select a color scheme for the filled areas. For more details, see Color Table Settings Dialog.
  • No Data Color: Only when the data is S3M tiles, you can set the display color for NoData values in the data via the dropdown menu. Default is white.
  • Transparency: Sets the transparency value, ranging from 0 to 100. Default is 0, meaning completely opaque. As the value increases, it becomes more transparent. The maximum value is 100, meaning completely transparent.
  • Additional Height (Meters): Only applicable when the data is S3M tiles and the Feature Value Field is Height. You can adjust this parameter to set an additional height value. Usage scenario 1: When the insertion point height (z) value of the original S3M tile data is set to a non-zero value, you need to enter the corresponding value here to ensure the correctness of the hypsometric setting. Usage scenario 2: When you have set the layer's Bottom Elevation and want to eliminate its impact on flood analysis, you can enter the corresponding value here.
  • Color Table Min: Enter a number to set the elevation/point cloud feature value corresponding to the leftmost color in the texture color table. Default is the minimum elevation/point cloud feature value of the model.
  • Color Table Max: Enter a number to set the elevation/point cloud feature value corresponding to the rightmost color in the texture color table. Default is the maximum elevation/point cloud feature value of the model.
  • Minimum Visible Value: Sets the minimum elevation/point cloud feature value for the model that participates in hypsometric representation. Default is the minimum value of the model's elevation/point cloud feature. Data below this value will not display hypsometric coloring.
  • Maximum Visible Value: Sets the maximum elevation/point cloud feature value for the model that participates in hypsometric representation. Default is the maximum value of the model's elevation/point cloud feature. Data above this value will not display hypsometric coloring.
  • Contour Interval: Enter a number to set the spacing between contour lines. Default is 100 meters, meaning a contour line is drawn every 100 meters.
  • Sampling Mode: Provides two modes: Nearest Neighbor Sampling and Linear Sampling.
  • Volume Data: Volume data parameters are the result of voxel grid overlay generating tiles. Different volume data parameters can be selected to represent different attribute fields. For details, see Voxel Grid Overlay Model Tiles.