[mapserver-dev] drop shadow for labels
Tamas Szekeres
szekerest at gmail.com
Tue May 30 07:29:13 PDT 2017
I've re-added support for SHADOWCOLOR/SHADOWSIZE according to
https://github.com/mapserver/mapserver/issues/5438
In order to make the multiple label solution compatible with the original
one, we would need to handle the following issues:
https://github.com/mapserver/mapserver/issues/5440
https://github.com/mapserver/mapserver/issues/5441
Best regards,
Tamas
2017-05-29 14:13 GMT+02:00 Tamas Szekeres <szekerest at gmail.com>:
> I agree this is a regression issue that should be fixed.
>
> But should we also need to deprecate SHADOWCOLOR and SHADOWSIZE or
> removing that support in the code was also a regression? I don't see in the
> documentation that SHADOWCOLOR and SHADOWSIZE are no more supported and the
> migration guide doesn't mention a compatible solution either.
>
> We should also make OFFSET as a bindable attribute, since SHADOWSIZE was
> also bindable.
>
>
> Best regards,
>
> Tamas
>
>
>
>
> 2017-05-22 20:29 GMT+02:00 Lime, Steve D (MNIT) <steve.lime at state.mn.us>:
>
>> Sure looks to be a regression.
>>
>> Works w/two label blocks: http://maps1.dnr.state.mn.us/c
>> gi-bin/mapserv64?map=/usr/local/mapserver/apps/test/drop_
>> shadow/test.map&mode=map
>> Doesn't work: w/two label blocks: http://maps1.dnr.state.mn.us/c
>> gi-bin/mapserv70?map=/usr/local/mapserver/apps/test/drop_
>> shadow/test.map&mode=map
>>
>> Mapfile follows... FORCE TRUE gets the label to appear correctly but that
>> shouldn't be necessary. --Steve
>>
>> MAP
>> NAME 'drop shadows'
>> SIZE 500 500
>> EXTENT 0 0 499 499
>>
>> FONTSET /usr/local/mapserver/fonts/fonts.list
>>
>> IMAGECOLOR 232 232 232
>>
>> LAYER
>> NAME 'label'
>> TYPE POINT
>> STATUS DEFAULT
>> FEATURE
>> POINTS 250 250 END
>> TEXT 'Sample Text'
>> END
>> TRANSFORM FALSE
>> CLASS
>> LABEL
>> TYPE TRUETYPE
>> FONT arial
>> SIZE 16
>> COLOR 181 181 181
>> OFFSET 3 3
>> END
>> LABEL
>> TYPE TRUETYPE
>> FONT arial
>> SIZE 16
>> COLOR 0 0 0
>> OUTLINECOLOR 255 255 255
>> END
>> END
>> END
>> END
>>
>> -----Original Message-----
>> From: mapserver-dev [mailto:mapserver-dev-bounces at lists.osgeo.org] On
>> Behalf Of Stephen Woodbridge
>> Sent: Sunday, May 21, 2017 6:07 PM
>> To: Tamas Szekeres <szekerest at gmail.com>
>> Cc: mapserver-dev at lists.osgeo.org
>> Subject: Re: [mapserver-dev] drop shadow for labels
>>
>> FORCE TRUE is likely going to generate other problems.
>>
>> Did you try this without FORCE TRUE. This:
>> http://mapserver.org/development/rfc/ms-rfc-77.html
>> leads me to believe that multiple label blocks in a class use the same
>> label point and therefore should not need the FORCE TRUE. And I think
>> you can have multiple labels optionally with leader lines on a single
>> point like this.
>>
>> -Steve W
>>
>> On 5/21/2017 5:13 PM, Tamas Szekeres wrote:
>> > We could indeed achieve similar effect by duplicating the label
>> > definition, however we need to set FORCE TRUE for the upper label to get
>> > it displayed at all.
>> >
>> > Best regards,
>> >
>> > Tamas
>> >
>> >
>> > 2017-05-21 22:30 GMT+02:00 Stephen Woodbridge <woodbri at swoodbridge.com
>> > <mailto:woodbri at swoodbridge.com>>:
>> >
>> > Ahhh, sorry. I believe that you can include the label block twice,
>> > the first time you draw the shadow, with some offset and using your
>> > shadow color, the second time you draw it with the foreground color.
>> >
>> > You should open an issue against the docs they are not correct.
>> > There might be an FRC that covers this change, but I'm not seeing
>> one.
>> >
>> > On 5/21/2017 4:13 PM, Tamas Szekeres wrote:
>> >
>> > I've already learnt, that BACKGROUNDCOLOR,
>> > BACKGROUNDSHADOWCOLOR, BACKGROUNDSHADOWSIZE can be replaced with
>> > label styles, but what about SHADOWCOLOR and SHADOWSIZE?
>> >
>> > Thanks,
>> >
>> > Tamas
>> >
>> >
>> > 2017-05-21 22:01 GMT+02:00 Stephen Woodbridge
>> > <woodbri at swoodbridge.com <mailto:woodbri at swoodbridge.com>
>> > <mailto:woodbri at swoodbridge.com <mailto:woodbri at swoodbridge.com
>> >>>:
>> >
>> >
>> > On 5/21/2017 1:54 PM, Tamas Szekeres wrote:
>> >
>> > Hi,
>> >
>> > Could someone explain how to configure drop shadow for
>> > label in
>> > mapserver 7.x ?
>> > It looks like the SHADOWCOLOR/SHADOWSIZE implementation
>> > has been
>> > stripped from the code and I'm not sure what replaces
>> > that option.
>> > The documentation is very brief in this regard.
>> >
>> >
>> > BACKGROUNDCOLOR [r] [g] [b] | [hexadecimal string]
>> >
>> > Color to draw a background rectangle (i.e. billboard).
>> > Off by
>> > default.
>> >
>> > Note
>> >
>> > Removed in 6.0. Use a LABEL STYLE object with
>> > GEOMTRANSFORM
>> > labelpoly and COLOR.
>> > BACKGROUNDSHADOWCOLOR [r] [g] [b] | [hexadecimal string]
>> >
>> > Color to draw a background rectangle (i.e. billboard)
>> > shadow.
>> > Off by default.
>> >
>> > Note
>> >
>> > Removed in 6.0. Use a LABEL STYLE object with
>> > GEOMTRANSFORM
>> > labelpoly, COLOR and OFFSET.
>> > BACKGROUNDSHADOWSIZE [x][y]
>> >
>> > How far should the background rectangle be offset?
>> > Default is 1.
>> >
>> > Note
>> >
>> > Removed in 6.0. Use a LABEL STYLE object with
>> > GEOMTRANSFORM
>> > labelpoly, COLOR and OFFSET.
>> >
>> > http://mapserver.org/mapfile/label.html#label-style
>> > <http://mapserver.org/mapfile/label.html#label-style>
>> > <http://mapserver.org/mapfile/label.html#label-style
>> > <http://mapserver.org/mapfile/label.html#label-style>>
>> >
>> > STYLE
>> > GEOMTRANSFORM 'labelpoly'
>> > COLOR 153 153 153
>> > OFFSET 3 2
>> > END # STYLE
>> > STYLE
>> > GEOMTRANSFORM 'labelpoly'
>> > COLOR 255 0 0
>> > END # STYLE
>> >
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