Opened 15 years ago
Closed 15 years ago
#2867 closed defect (fixed)
Centring Labels Correctly Where the Label is Longer than the Street
| Reported by: | nnikolov | Owned by: | aboudreault |
|---|---|---|---|
| Priority: | normal | Milestone: | 5.6 release |
| Component: | MapServer C Library | Version: | 5.2 |
| Severity: | normal | Keywords: | Centring Labels |
| Cc: | aboudreault |
Description
There is a bug in Mapserver that causes the label path to be extrapolated wrongly and thus the label to be drawn in the wrong place. This bug causes the incorrect placement of a “follow” label, when the label is longer than the section of the street in which the label is to be placed. The problem is the incorrect calculation of ‘t’ in the case that the label is longer than the line, i.e. if(text_start_length < 0.0). The fix is in file mapprimitive.c in function msPolylineLabelPath().
See the attached file for more detail and the code fix.
Attachments (1)
Change History (4)
by , 15 years ago
| Attachment: | CentringLabelsCorrectlyWhereLabelLongerThanStreet.doc added |
|---|
comment:1 by , 15 years ago
| Cc: | added |
|---|---|
| Milestone: | → 5.6 release |
comment:2 by , 15 years ago
| Owner: | changed from to |
|---|---|
| Status: | new → assigned |
comment:3 by , 15 years ago
| Resolution: | → fixed |
|---|---|
| Status: | assigned → closed |
I successfully reproduced the bug and the patch is working properly.
Thanks for the patch nnikolov!
Fixed and committed in r9512.
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Alan, might be a good one for you to take since you've been in that code somewhat recently...
Steve