Ka-map non-baselayers not transparent if image types inconsistent

I see I inadvertently created this as user anonymous. If anyone should have questions, feel free to email me.

I'm not sure that OpenLayers can do anything about this. We can only control what we send as parameters. However, I have added additional documentation in the constructor in an attempt to alleviate the pain that this causes, referencing this ticket.

Thanks for the feedback, and sorry for any inconvenience this has caused you. if you feel there is a solution that has been ignored, please reopen this ticket with a comment.

There is a problem in the "tile.php" file (named "examples/kamap.txt") related to ka-Map overlays. http://trac.openlayers.org/ticket/327

The solution is actually very simple. The code was missing to uppercase the output format, so if you set your map in .js with "i" equals to "gif", the code won't cacth this, and will use de default value from "tile.php" configuration section.

I've break this file in two files "tile.php" and "config.php" to allow a single configuration file be shared with both "tile.php" and "precache.php" (I'll discuss prepache changes in another thread).

I'll posting a patch on the tracker for this issue.

Here goes a suggestion. Since there will be 3 different php files related to ka-Map, I think will be good, to create another directory for those files, maybe in "examples/kaMap", for example. I think also that is good to put those files named "tile.php.txt", "config.php.txt", and "precache.php.txt", to a better readibility.

This changes required a little change in KaMap.js, because the constant "OpenLayers.Layer.KaMap.DEFAULT_PARAMS" souldn't be used, as the default output format is taken from "config.php" file.

So, I'll post in the tracker a separated patch for this.

Here a simple example of creating two ka-Map layers:

// The output format used will be that informed at "config.php", // since the parameter "i" was not used. var kamap_base = new OpenLayers.Layer.KaMap(

"Satellite", "http://www.openlayers.org/world/tile.php", {g: "satellite", map: "world"}

);

// Create an ka-Map overlay layer (using "isBaseLayer: false"). Forces // the output to be a "gif", using the "i" parameter. var kamap_overlay = new OpenLayers.Layer.KaMap(

"Streets", "http://www.openlayers.org/world/tile.php", {g: "streets", map: "world", i: "gif"}, {isBaseLayer: false}

);

regards,

Pedro Simonetti.

PS: I'm reopening this ticket as suggested in the last comment

NOTE: Since there isn't a file "config.php.txt" yet, I've just uploaded this file instead of adding a patch.

After some discussion with Paul [1] about the directory structure isse, I've made some changes as he suggested. So, the patch that sould be used is this second version I'm publishing here.

[1] http://www.nabble.com/Patch-for-a-ka-Map-cached-layer-tp16623387p16623662.html

I've reopened this ticket at: http://trac.openlayers.org/ticket/327#comment:5

I've created a trac account, so I'm posting here to get involved with the development of this feature.

Hi Developers,

I'm still tracking the changes on this ticket, and I'm available to help.