erroneous extra outlines when using WIDTH based on an attribute about mapserver

[geographika]

@Skrol29 - it looks like the features are clipped and then the OUTLINECOLOR is applied to the clipped feature.

It doesn't seem to address this case, but you could try testing against the main branch, which includes changes relating to attribute binding and WIDTH/OUTLINEWIDTH in #6964.

I presume non-titled requests are fine?

You could also see if adding a buffer around the edge of the tile (I guess to the max value in your [my_width] attribute).

  WEB
    METADATA
      "tile_map_edge_buffer" "10"
      "tile_metatile_level" "0"
    END #metadata

[Skrol29]

@geographika

I presume non-titled requests are fine?

The problem occurs only for polygons that are partially drawn in the frame. Thus, only for framed rendering.

You could also see if adding a buffer around the edge of the tile (I guess to the max value in your [my_width] attribute).

We have lot of layers in our Mapfile, so such a configuration could penalize other layers.
Another point is, in this case, the attribute [my_width] is made for the user to freely choose the width of the rendering. So it could theoretically be more than 10 pixel width wanted.

[Skrol29]

@geographika

It doesn't seem to address this case, but you could try testing against the main branch, which includes changes relating to attribute binding and WIDTH/OUTLINEWIDTH in #6964.

I’ve tested the main branch, and the problem still occurs.

[geographika]

@Skrol29 - as the features draw without issues when using a fixed width it is likely to be a combination of not calling msBindLayerToShape in mapdraw.c at the correct place, possibly in combination with the logic in msOutlineRenderingPrepareStyle in maprendering.c.