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Surface

Figure D-14: Visualization Browser with Surface Properties Displayed

Figure D-14: Visualization Browser with Surface Properties Displayed

These properties control surface object visualizations. For each property, the type of control and the values that can be assigned are listed. For a description of how a particular control is used, refer to Property Controls.

Table D-44: Surface Properties 

Table D-44: Surface Properties 
Property
Control Type: Values
Color
Color: Color of the surface visualization. Click to choose from the default color palette, or specify RGB values. Default = [255,184,0] (gold)
Use color on bottom
Boolean: Display a color for the bottom of the surface. Choose True or False.
Default = False
Image palette
User Defined: By selecting Edit Color Table Edit access the color table to manipulate surface color values.
Bottom color
Color: Color to be used for the bottom of the surface. Click to choose from the default color palette, or specify RGB values. Default = [255,255,255] (white)
Minimum value
Number: Minimum Z-Axis value of the surface plot. Edit the number to change the value.
Maximum value
Number: Maximum Z-Axis value of the surface plot. Edit the number to change the value.
Surface style
String List: Style used for rendering the surface. Select a style from the list. Choose from these values:
  • Points: Data points in the surface are rendered as points.
  •  

  • Wire mesh: Data points in the surface are connected with lines, forming a mesh.
  •  

  • Filled: Data points in the surface are connected with filled quadrangles or triangles, forming a solid surface.
  •  

  • Ruled XZ: Data points in the surface are connected with horizontal (Z-direction) lines, forming a grid.
  •  

  • Ruled YZ: Data points in the surface are connected with vertical (Y-direction) lines, forming a grid.
  •  

  • Lego: Stacked histogram-style plot in which each data value is rendered as an outline box covering the XY extent of the cell and with a height proportional to the Z value.
  •  

  • Lego filled: Same as Lego, but the boxes are filled.
Default = Filled
Fill shading
String List: Method used for shading the surface polygons. Select a shading method from the list. Choose from these values:
  • Flat: Shades polygons with a uniform fill.
  •  

  • Gouraud: Interpolates intensities from each vertex along each edge. Then, when the polygons are converted, interpolates the shading along each scan line from the edge intensities. Results in a more natural appearance.
Default = Flat
Draw method
String List: Method used for drawing the surface. Select a method from the list. Choose from these values:
  • Quads: Draw a surface composed of quadrangles.
  •  

  • Triangles: Draw a surface composed of triangles.
Default = Quads
Line style
Line Style: Style of lines used for constructing the surface. Select a style from the list. Default = (solid line)
Line thickness
Line Thickness: Thickness of lines used for constructing the surface. Select a thickness from the list. Default = 1
Remove hidden lines
Boolean: Hide lines that show through the surface mesh or grid. Choose True or False.
Default = False
Show skirt
Boolean: Display the edges of the surface as a filled skirt? Choose True or False.
Default = False
Skirt bottom height
Number: Set bottom of displayed skirt to this height. Edit the number to change the value.
Default = 0
Texture interpolation
String List: Method used for interpolating selected texture map. Select a method from the list. Choose from these values:
  • Nearest Neighbor: Assign the value of the nearest pixel to the pixel in the output image. Fastest method, but may cause jagged edges.
  •  

  • Bilinear: Create a weighted average based on the nearness and brightness of the closest four pixels, and assign that value to the pixel in the output image.
Default = Nearest Neighbor
Texture hires
String List: Method used for tiling the selected high-resolution texture map. Select a tiling method from the list. Choose from these values:
  • No tiling: Do not use tiling
  •  

  • LOD tiling: Use level of detail tiling
  •  

  • Tiling: Use tiling
Default = No tiling
Skip zero opacity
Boolean: Skip zero opacity for surface? Choose True or False.
Default = True
Vertex Color Scale
User Defined: Select vertex color scale bottom/top.
Texture Map Scale
User Defined: Select texture map scale bottom/top.

  IDL Online Help (March 01, 2006)