Layer shadows

Instructions for use

The shadow position of the model in the scene is obtained according to the position of the light source (the sun), so as to simulate the shadow effect of the model in the real scene.

Layer shadow effect supports CAD Model Dataest, vector (model) Cache Layer, KML layer, OSGB index file layer, 3D point-line-surface layer, 2D point-line-surface layer, etc. The 2D surface layer shadow is usually applied to the Region Dataset and thematic map layer with Extended Height set, and the point (line) layer shadow is usually applied to the point (line) layer with 3D Symbol set.

Operation steps

  1. With the data open in the scene, in Layer Manager, select one or more layers, right-click, The Context Menu Shadow Model "provides three shadow settings: no shadow, Display Shadows of Selected Objects, and Display Shadows of All Objects.
    • No shadow: Select to indicate that the shadow of the Model Object in the layer is not displayed.
    • Display Shadows of Selected Objects: When selected, the shadow of the selected Model Object in that layer is displayed.
    • Display Shadows of All Objects: When selected, shadows of all Model Objects in the layer are displayed.
  2. Or select one or more layers in Layer Manager, click the Layer Properties button in the Properties group of the Scene tab, and the Layer Properties panel pops up. Click the Drop-down Button on the right side of the Shadow Model "to set.
  3. The shadow effect of Model Object needs to activate the sun effect before the shadow can be displayed. The Visible button in the Prospector group of the Scene tab activates the sun effect and sets the Display Effects of Sun-Illumination to get a display variation of the model's shadows in a realistic environment. See Solar effects for Sun-illumination effect settings.

    4. As shown in the figure below, it is a schematic diagram of the change of the model shadow in four periods of a day.

    Early morning Noon
    Evening At night

Precautions

After the shadow effect is turned on, the display direction of the Model Object shadow is related to the current scene time and is independent of the current computer time. The current scene time can be viewed or modified in the solar effects management panel. For details, see Solar effects .