Supported file formats for background images

Vissim supports the following file formats for graphic files:

Raster formats

*.bmp

Windows bitmap, two-dimensional

*.jpg

graphic compressed according to JPEG (Joint Photographic Experts Group) standard

*.png

Portable Network Graphics, compressed with no loss in quality

*.tga

Targa (Truevision Advanced Raster Graphics Array) image file, uncompressed or compressed with no loss in quality. Also saves values for alpha channel, gamma correction and text as meta-information.

*.tif

Tagged Image File Format, uncompressed or packbits compressed

*.sid

Mr. SID files, display with best possible resolution

*.ecw

Enhanced Compressed Wavelet, for large raster graphics, e.g. aerial images. The *.ecw file format provides the following advantages:

  • high compression rates
  • visually flawless image quality
  • Contrary to other file formats, it does not cause any noteworthy delays while navigating in the Vissim network.

Compression rates recommended for Vissim:

  • 9:1 for high quality
  • 20:1 for good quality with shorter loading time

 

Vector formats

*.dwg

Is updated for each new version of Autodesk AutoCADTM

*.dxf

Is updated for each new version of Autodesk AutoCADTM

*.emf

Windows Enhanced Metafile

*.wmf

Windows Metafile

*.shp

Shapefile for spatial data Vissim supports transparency in 2D mode and 3D mode.

 

Document format

*.pdf

Insert a page of a PDF file as a vector graphic

  • The 64-bit edition of Vissim supports the file formats of *.dwg versions up to DWG2013.
  • AutoCAD saves the current layout with the position, translation vector and rotation with a *.dwg or *.dxf file, if the file is saved in AutoCAD.
  • These layout settings are taken into consideration by Vissim as much as possible for the display of a loaded background image.
  • The import of pedestrian areas and obstacles of a *.dwg file do not take these layout settings into consideration for the graphic display.
  • When you save a *.dwg or *.dxf file in AutoCAD, ensure that the current layout settings are suitable for use of the file as a background image in Vissim. This applies, in particular, before loading a *.dwg file as a background image, after construction elements for pedestrians have already been imported from this file in Vissim.