Avenza Resources Blog
Changing the Point Angle using Expressions and Attribute Values in MAPublisher
Here we have placed point symbols for a MAP Point layer. However, we want to change the point angle using the Attribute values.
Creating a Custom Coordinate System from a Predefined Coordinate System
When transforming a world map in a geodetic system (such as WGS84) to a predefined projection (such as Robinson) using MAPublisher, the central meridian of the predefined projection should be set to 0 degree longitude as shown below.
Image 1: world map in WGS84
Image 2: world map in a predefined Robinson Projection
Geographic Imager: Using Photoshop Info panel to explore elevation values
After importing a DEM file, you can always check the elevation value of a specific pixel in the Georeference dialog window. When you hover your mouse over the DEM image in the preview windw, you can get the image XY coordinate, latitude and longitude values, eastings and northing values (if the map is projected), as well as the elevation value.
MAPublisher and Geodatabase Import Compatibility with ArcGIS 10
For MAPublisher 8.2 and 8.3, there is a known issue where the geodatabase importer for personal geodatabase (*.mdb), geodatabase file(*.gdb), and ArcSDE is incompatible after ArcGIS 10 is installed. This issue occurs due to a conflict with several DLL files of ArcGIS 10. Our development team is hard at work to make the MAPublisher geodatabase importer compatible with both ArcGIS 9.3 and 10. We'll keep you updated with the progress.
If you have any further question regarding this issue, please feel free to contact us at support@avenza.com.
Working with Custom Highway Shield Symbols and Label Features
MAPublisher offers a variety of labelling options, ranging from the MAP Tagger tool used for hand labelling single pieces of art, the Label Features tool for automatic attribute labelling, and MAPublisher LabelPro™, a separately licensed advanced labelling engine.
MAPublisher LabelPro ships with nearly 100 highway shields from across North America into which attribute labels can be easily placed. Although LabelPro does not support adding custom symbols to its existing symbols library, the following instructions outline a manual method for adding a custom highway shield to your map, along with placing text on to this shield.
Geographic Imager 3.2: Introduction to Terrain Shader, Part 3 - Applying Terrain Shader to multiple DEM files
If your workflow involves Terrain Shader, specifying a DEM schema is an important step, especially when dealing with mulitple DEM files.
When importing a single DEM file, Geographic Imager converts elevation values to gray scale values. For example, if the elevation range in your DEM file is between 0 and 2500 meters and the "Auto-stretched" option is selected, this range will be converted to the Adobe Photoshop gray scale range between black and white. As shown below, the black color is assigned to the lowest elevation value (0 meter) while the white color is assigned to the highest elevation value (2500 meters). For elevation values between 0 and 2500, Geographic Imager calculates and converts them into gray scale.
Geographic Imager 3.2: Introduction to Terrain Shader, Part 2 - Creating shaded relief
In a previous blog, we showed you how to create a shaded relief image from an imported DEM file by using either our JavaScript to automate all the processes or through a manual method.
With Geographic Imager 3.2, you can produce a shaded relief image using the new feature Terrain Shader quickly and easily with just a few clicks.
Geographic Imager 3.2: Introduction to Terrain Shader, Part 1
The upcoming release of Geographic Imager 3.2 introduces a new feature called Terrain Shader, used to apply color gradients and shaded relief to imported DEM images. Color gradients can be exported so that you can use them for other images or share them with other people.
You might want to take a look at our brief video about the Geographic Imager Terrain Shader on our Avenza YouTube channel.
Styling a MAPublisher scale bar
After generating a scale bar, it is placed in a MAP Legend layer. You can accept the default look of it, but majority of users will want to customize and style it to match their map.
Now I've just generated a simple scale bar. If you expand the Legend layer, you can see the object "MAPublisher Scalebar" is placed within it. This is a special object generated by MAPublisher and there is currently a dynamic link between the MAP View information (i.e. spatial information) and the scale bar object.
Geographic Imager: Create shaded relief from a DEM
With Geographic Imager 3.x, you can import DEM files to Adobe Photoshop and can create shaded relief images.

