MAP Attribute Panel

Optimizing Point Symbol Placement with MAPublisher LabelPro

This post was contributed by Hans van der Maarel of Red Geographics.


The problem with using GIS data for point symbols is that depending on the scale and symbolization you often end up with symbols partly overlapping each other. Of course, the symbols can be manually moved around after initial placement to get a more aesthetically pleasing result, but that can be a tedious and time-intensive task.

Thankfully, there is a way to automate at least part of this process by using MAPublisher and LabelPro.

Example map of Breda, The Netherlands
(Click for larger version)

Placing Text with an Offset Value Using MAP LabelPro

Having introduced some background information about text insertion point coordinate values in a previous post, it would be good to explore if this method works when trying to place text objects (annotations/labels) with a specific offset value. For example, if you have a point layer and there is an attribute for the offset value so that every object has a different offset value.

An Attribute table with the offset value for every object

Optimizing Adobe Illustrator Documents with MAPublisher for Geospatial PDF Export

Adobe Illustrator documents with GIS data can be exported to georeferenced PDF files thanks to the MAPublisher Export Geospatial PDF feature. A geospatial PDF is an Adobe Acrobat file that contains geospatial coordinates. With coordinates, users can view and interact with the PDF to find and mark location data. MAPublisher exports all the MAP Attributes data in an Adobe Illustrator document into the geospatial PDF. Attribute values can subsequently be accessed and searched in Acrobat 9 (and 8 with limitations).

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.

Step 0: my point (not rotated)

Improving MAPublisher performance

When working with map documents and large datasets, you may experience a slight decrease in performance in Adobe Illustrator. You may also experience large AI files after saving. This may be due to the number of layers and amount of spatial data being imported by MAPublisher. One possible solution to increase system performance is to buy more RAM, generally 2GB for average users and 4GB or more for power users.

However, there are several great (and free) options to try before buying another stick of RAM. These methods may sound obvious, but are often overlooked.

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