PNG (Palette) (*.png)

PNG is a lossless data compression format but only supports a single image layer. It is a memory based dataset and typically has the extension *.PNG.

When exporting the current view the Raster Exporter Configuration dialog is displayed:

Configuration

Pixel Size

This option allows you to specify the image resolution.

Image Width/Height

This option allows you to specify the output file size in pixels for width and height and the pixel size is in map units.

Colour Palette

Algorithm used to generate the colour palette, select from 5x5x5 Colour Cube, 6x6x6 Colour Cube, Neural Network Quantization, Oct Tree.

Create Worldfile

True or False, to create worldfile containing georeferencing information.

Deflate Level

Select compression level, 1 to 9.

Dithering Algorithm

Select from Dither (GDI), Floyd-Steinberg, SIS, Snap (GDI), Snap (Palette).

Arguments to Export API Method

• clsExport$
  
  PNGPalette_GDALExporter

Compatibility:

• Cadcorp SIS Map Modeller
• Cadcorp SIS Map Editor
• Cadcorp SIS Map Manager
• Cadcorp SIS ActiveX Modeller
• Cadcorp SIS ActiveX Manager

See full list of Export Formats

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