[Geomoose-users] Geomoose2 map rendering
Brian Fischer
bfischer at houstoneng.com
Fri Oct 16 09:38:48 EDT 2009
Franz,
This is a tough question to answer because there can be a lot of different factors that determine the speed of a mapping application. Here are some ideas:
- Hardware plays a big role in performance.
- Optimizing your MapServer mapfiles and data sources so they perform the best they can. This may include creating spatial indexes on your data or tiling your raster data. Here's a good MapServer document on the subject http://mapserver.org/optimization/index.html#optimization
- Another thing we still have not added to GeoMOOSE, due to lack of funding or a developer contribution is support Tilecache layer types. Tilecache would allow you to create a mapcache of your images. Similar to what you can do with ArcGIS server and google maps. You can read more about Tilecache at http://tilecache.org/.
I hope this helps.
Brian Fischer, CFM GIS Project Manager
Houston Engineering, Inc.
Phone: W: 763.493.4522 / M: 763.229.2734
From: FRANZ OKYERE [mailto:franzzoa at hotmail.com]
Sent: Thursday, October 15, 2009 11:43 PM
To: geomoose-users at lists.sourceforge.net
Subject: [Geomoose-users] Geomoose2 map rendering
I'll like to thank you guys for the help so far. My app is taking form with every contribution. Nonetheless, I have one query. How can I minimise the time taken for geomoose to render a page? Looks like it needs to reload everytime I pan the map or zoom in/out. Is there something I could do to make it render faster or ? Thanks a lot. Franz. GIS specialist.
________________________________
Date: Wed, 14 Oct 2009 10:00:04 -0500
From: JJohnson at ci.blaine.mn.us
To: bfraser at geoanalytic.com
CC: geomoose-users at lists.sourceforge.net
Subject: Re: [Geomoose-users] Raster Imagery
Thank you to everyone for thoughts and ideas. I took Brent's suggestions and ran GDALINFO on the dataset and received an error. For some reason it could not find the "BitsPerSample" field in the data. So, I basically started over from scratch.
I created the raster set in Spatial Analyst and then decided to save the file out to a new file, but this time in UTM. I also rendered the dataset so each pixel was given an value from 0 - 255. I then created a World file, based on the UTM values, on Dan's suggestion.
I have attached a copy of my .MAP file and PDF view of how the dataset looks.
Thanks again to everyone for your help.
Jeremy Johnson, GISP
City of Blaine
-----Original Message-----
From: Brent Fraser [mailto:bfraser at geoanalytic.com]
Sent: Tuesday, October 13, 2009 4:12 PM
To: Johnson, Jeremy
Cc: geomoose-users at lists.sourceforge.net
Subject: RE: [Geomoose-users] Raster Imagery
Jeremy,
Sorry, I should have said gdalinfo (ogrinfo is only for vector formats).
Could you try:
gdalinfo /ms4w/data/All_Crimes_Density1.tif
Thanks!
Brent
> The "init=epsg:99999" is a custom projection for Anoka County
> Coordinates that I added to the epsg file.
>
> When I do the ogrinfo command, I get the following:
> FAILURE: Unable to open the datasource
> '/ms4/data/all_crimes_density1.tif' with the following drivers.
> ->ESRI Shapefile
> ->Mapinfo File
> ->UK .NTF
> ->SDTS
> ->Tiger
> ->S57
> ->DGN
> ->VRT
> ->REC
> ->MEMORY
> ->BNA
> ->CSV
> ->GML
> ->GPX
> ->KML
> ->GEOJSON
> ->GMT
> ->SQLITE
> ->ODBC
> ->PGEO
> ->POSTGRESQL
> ->MYSQL
> ->AVCBIN
>
> I also did the same on the SID files I have in the same directory that I
> show up just fine, and I received the same error
>
>
> Jeremy Johnson, GISP
> City of Blaine
>
> -----Original Message-----
> From: Brent Fraser [mailto:bfraser at geoanalytic.com]
> Sent: Tuesday, October 13, 2009 3:03 PM
> To: Johnson, Jeremy
> Cc: geomoose-users at lists.sourceforge.net
> Subject: Re: [Geomoose-users] Raster Imagery
>
> That "init=epsg:99999" doesn't look right. Can you do a ogrinfo on the
> command line:
>
> ogrinfo /ms4w/data/All_Crimes_Density1.tif
>
> Best Regards,
> Brent Fraser
>
>> Nope. That wasn't it. And yes, I am on 1.6.
>>
>>
>>
>> Jeremy Johnson, GISP
>>
>> City of Blaine
>>
>> ________________________________
>>
>> From: Dan Little [mailto:danlittle at yahoo.com]
>> Sent: Tuesday, October 13, 2009 2:28 PM
>> To: Johnson, Jeremy; geomoose-users at lists.sourceforge.net
>> Subject: Re: [Geomoose-users] Raster Imagery
>>
>>
>>
>> If this is GeoMOOSE 1.6.X change STATUS to DEFAULT.
>>
>>
>>
>> From: "Johnson, Jeremy" <JJohnson at ci.blaine.mn.us>
>> To: geomoose-users at lists.sourceforge.net
>> Sent: Tue, October 13, 2009 1:43:06 PM
>> Subject: [Geomoose-users] Raster Imagery
>>
>> I have created a crime density raster with Spatial Analyst and I
>> want to have it display in Geomoose. However, when I add it to my map
>> and turn it on, it is just white. I have attached a PDF showing my
>> dilemma and a copy of the mapfile. Any thoughts would be appreciated.
>>
>>
>>
>> PS - I purposely put the call to the map file under the street
>> centerline and above everything else to show what happens when the
> layer
>> is activated.
>>
>>
>>
>> MAP
>>
>> NAME 'crimedensity'
>>
>> EXTENT 474400 4995000 494000 5007000
>>
>> UNITS METERS
>>
>> FONTSET '../fonts/fontset.list'
>>
>> SYMBOLSET '../symbols/symbol.sym'
>>
>> RESOLUTION 96
>>
>> IMAGETYPE png
>>
>> INTERLACE OFF
>>
>> PROJECTION
>>
>> "init=epsg:26915"
>>
>> END
>>
>>
>>
>> QUERYMAP
>>
>> STATUS ON
>>
>> STYLE SELECTED
>>
>> END
>>
>>
>>
>> WEB
>>
>> INCLUDE "../temp_directory.map"
>>
>> END
>>
>>
>>
>>
>>
>> LAYER
>>
>> NAME crimedensity
>>
>> DATA '/ms4w/data/All_Crimes_Density1.tif'
>>
>> TYPE raster
>>
>> STATUS ON
>>
>> PROCESSING "BANDS=1,2,3"
>>
>> PROJECTION
>>
>> "init=epsg:99999"
>>
>> END #PROJECTION
>>
>> END #LAYER
>>
>>
>>
>>
>>
>> END #Map
>>
>>
>>
>> Jeremy Johnson, GISP
>>
>> G.I.S. Coordinator
>>
>> City of Blaine
>>
>> 10801 Town Square Dr Ne
>>
>> Blaine, MN 55449
>>
>> (763) 717-2639
>>
>>
>>
>>
>>
>>
>>
>>
>>
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