still symbols and text with custom rendertheme

[fridolin]

Hi,

I try to make a night mode bicycle rendertheme.

First step was to remove all stuff and play with the rules:

<?xml version="1.0" encoding="UTF-8"?>
<rendertheme xmlns="http://mapsforge.org/renderTheme"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://mapsforge.org/renderTheme ../
renderTheme.xsd" version="1" map-background="#000000">
<rule e="way" k="highway" v="cycleway">
<line stroke="#d1fad1" stroke-width="0.85" />
</rule>
</rendertheme>

With this theme I still get some symbols and text on the map.

http://dl.dropbox.com/u/4880223/export_03.png

What did I wrong?

Should we have to create a custom rendertheme to get a useable map on
displays with high ppi like galaxy note, or is it the developer who
can just add some "zoom" feature without zooming the rendered bitmaps
like in 0.24.

[Thilo Mühlberg]

Hello Fridolin,

this is indeed a known bug in the map library. The problem arises from
the fact, that the dependency cache is not cleared whenever the
render-theme changes. In fact, we cannot clear it as you might switch
back to the previous render-theme and then the cache is still needed to
render new tiles correctly. So the actual bug is that the dependency
cache does not store the used render-theme together with a dependency.

The labeling and the dependency cache is one of the oldest pieces of
code in the library and really of a bad quality. When it was written,
there was no render-theme mechanism yet. One of our highest priorities
is therefore to implement a new labeling, which will fix such bugs and
overcome most if not all of the current limitations (see for example
https://code.google.com/p/mapsforge/issues/detail?id=20). As we have not
yet started working on that, it will however take some time.

Greetings,
Thilo