[mapserver-users] Label display
Ken S. Elvehjem
elvehjem at runestone.net
Wed Jun 18 08:21:19 EDT 2008
From: "Ken S. Elvehjem" <elvehjem at runestone.net>
To: "TC Haddad" <tchaddad at gmail.com>
Subject: Re: [mapserver-users] Label display
Date: Wednesday, June 18, 2008 7:15 AM
TC,
Yes, I don't have any control over that. Yet. The I-35 symbol and text are not issues, in this case, because they are closer to the center of the picture.
My center coordinates are selected from a list of land survey plots... in the north central US, the land was surveyed in plots of 1 square mile -- 640 acres. The bulk of the individual fields in which I am interested (like 99.1%) will fall within the boundaries of that square mile, or section, to use the survey word.
However, the maps we create are used for navigating to the "correct" field by field crews, and we have found that the operator in the office that creates them is much happier (and more accurate) if they can see a margin around that section for context & landmarks. We try to have approximately 1/2 mile all the way around.
This operator draws in boundaries (using software I've written for the purpose) to mark the fields of interest, some of which extend past the edge of the section. Then, so as to have a larger picture in the field, the picture is cropped some to get rid of some of the border.
Unfortunately, some of the roads begin at the section boundary and extend toward the edge of the picture, and those labels are then placed somewhere between the edge of the section and the edge of the picture, and these may end up missing from the final product.
The operator can put in those labels manually, but the whole point was to automate the process...
Sincerely,
Ken
----- Original Message -----
From: TC Haddad
To: Ken S. Elvehjem
Sent: Tuesday, June 17, 2008 10:42 PM
Subject: Re: [mapserver-users] Label display
looks like it *is* happening for your highway symbol (which is drawn first).. The problem is that the next label (the "I-35" text) on the vertical line is drawn to avoid the one that is already on the line. No way to stop that I think...
do you always have both sets of labels drawing?
On Tue, Jun 17, 2008 at 8:07 PM, Ken S. Elvehjem <elvehjem at runestone.net> wrote:
OK, so here's that URL I forgot to include...
http://ortho.gis.iastate.edu/wmsconnector/com.esri.wms.Esrimap?&REQUEST=getmap&bbox=452711,4684970,453211,4685470&srs=epsg:26915&version=1.1.1&service=WMS&LAYERS=Iowa%20Roads%20E911,Midwest%20Highways,Cities,Counties&width=500&HEIGHT=500&FORMAT=PNG&TRANSPARENT=TRUE&servicename=transportation_midwest&SLD=http://ortho.gis.iastate.edu/sld/Iowa_Roads_E911_X3Font.xml
Ken
----- Original Message -----
From: Ken S. Elvehjem
To: mapserver-users at lists.osgeo.org
Sent: Tuesday, June 17, 2008 6:39 PM
Subject: [mapserver-users] Label display
Hi,
I'm using a program generated query to fetch a transparent PNG file of about 1600 pixels square from a streets & roads database in Iowa. A sample URL is pasted below my sig lines.
It works great, but the problem is that the features from a different layer (aerial photo) in which I am interested will usually be within the center 1/4 of the picture, and it usually gets cropped to center on that feature, which blows away some of my labels.
Is there any way to force the labels closer to the (x,y) center of the returned PNG file while still following along whatever feature they are identifying?
That is to say, if there is one on a north/south road, we'd like it to be nearer the Y center of the pic, and if one is on an east/west road, then have it be closer to the X center of the picture.
Any magic we can invoke to do *that*????
Sincerely,
Ken
Ken S. Elvehjem
ELVEHJEM TECHNICAL SUPPORT
250 Drury Ave
PO Box 37
Lowry MN 56349
320.283.5684
320.283.5247 h
320.424.1299 c
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----- Original Message -----
From: TC Haddad
To: Ken S. Elvehjem
Sent: Tuesday, June 17, 2008 10:42 PM
Subject: Re: [mapserver-users] Label display
looks like it *is* happening for your highway symbol (which is drawn first).. The problem is that the next label (the "I-35" text) on the vertical line is drawn to avoid the one that is already on the line. No way to stop that I think...
do you always have both sets of labels drawing?
On Tue, Jun 17, 2008 at 8:07 PM, Ken S. Elvehjem <elvehjem at runestone.net> wrote:
OK, so here's that URL I forgot to include...
http://ortho.gis.iastate.edu/wmsconnector/com.esri.wms.Esrimap?&REQUEST=getmap&bbox=452711,4684970,453211,4685470&srs=epsg:26915&version=1.1.1&service=WMS&LAYERS=Iowa%20Roads%20E911,Midwest%20Highways,Cities,Counties&width=500&HEIGHT=500&FORMAT=PNG&TRANSPARENT=TRUE&servicename=transportation_midwest&SLD=http://ortho.gis.iastate.edu/sld/Iowa_Roads_E911_X3Font.xml
Ken
----- Original Message -----
From: Ken S. Elvehjem
To: mapserver-users at lists.osgeo.org
Sent: Tuesday, June 17, 2008 6:39 PM
Subject: [mapserver-users] Label display
Hi,
I'm using a program generated query to fetch a transparent PNG file of about 1600 pixels square from a streets & roads database in Iowa. A sample URL is pasted below my sig lines.
It works great, but the problem is that the features from a different layer (aerial photo) in which I am interested will usually be within the center 1/4 of the picture, and it usually gets cropped to center on that feature, which blows away some of my labels.
Is there any way to force the labels closer to the (x,y) center of the returned PNG file while still following along whatever feature they are identifying?
That is to say, if there is one on a north/south road, we'd like it to be nearer the Y center of the pic, and if one is on an east/west road, then have it be closer to the X center of the picture.
Any magic we can invoke to do *that*????
Sincerely,
Ken
Ken S. Elvehjem
ELVEHJEM TECHNICAL SUPPORT
250 Drury Ave
PO Box 37
Lowry MN 56349
320.283.5684
320.283.5247 h
320.424.1299 c
--------------------------------------------------------------------------
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