ImageMapUtilities improvement

[pelski]

I have noticed that the ImageMapUtilities will produce
multiple map elements for identical coords.

In the method:

Code: Select all

public String getImageMapAreaTag(
            ToolTipTagFragmentGenerator toolTipTagFragmentGenerator,
            URLTagFragmentGenerator urlTagFragmentGenerator) {

you could put the coords into a Map, or a Set, so that only the last element
with the same coords gets sent back to the client.

This is particulary a problem with large datasets rendered on small charts.

Please let me know if you would like me to help implement this.

Cheers,
Nick

[angel]

This is not that simple. The areas can overlap and it will take great effort.

[pelski]

It doesn't matter if the areas overlap. They can stay.

I am only talking about areas that are identical!
An area would be identical if all their coordinates are equal.

[david.gilbert]

This area of JFreeChart could do with some improvement, so suggestions are welcome. As long as we are careful about the layer order, entities that are completely covered by higher layer entities could be removed from the entity list. It could be a little tricky to get it right, but not impossible, and it would be a nice improvement.

[pelski]

I have submitted a zip with a first go at this.

http://sourceforge.net/tracker/index.ph ... tid=315494

Areas with the same coords will be removed from map element.