Graphic Images

Select View ➔ Message Signs ➔ Graphics menu item

Graphic images can be displayed on DMS sign messages. These can be warning pictographs, interstate shields or other signs.

Image editing, resizing, painting, etc. is not supported - graphics must be edited and sized properly before importing into the IRIS image library. Use an image editor such as GIMP or Microsoft Paint for this purpose.

Requirements:

• Image file name: G{graphic number}.gif
• 1-bit monochrome or 24-bit color
• Width between 1 and 240 pixels
• Height between 1 and 144 pixels

Store graphics in /var/lib/iris/web/gif/ to make available in the REST API.

To import a graphic into the database, enable edit mode and press the Create button. Select the image in the file picker.

A single Transparent Color can be selected to be fully transparent - alpha transparency is not supported.

Each image has a unique Graphic Number, between 1 and 999. If the number is below 256, it can be used in a MULTI [g...] tag to display the graphic on a sign message.

A graphic can also be used to represent a static sign with a smaller DMS inset, if the graphic number is 256 or greater. For example, a static sign might contain a travel time message with a fixed destination, and the DMS inset would only be large enough to display a 2-digit number of minutes. The static graphic is displayed when selecting the DMS, to help operators understand the sign's function.