Alright, so after some great help last week from some people on this listhost, I have mapserver up and running on my local apache webserver. Now, however, I have tons of newbie questions, so sorry if these are painfully obvious/ignorant. I've spent a lot of time reading through documentation, and these are the things I still don't understand. <br>
<br>My goal right now for the project I'm working is to use a .jpeg of my neighborhood, geo-reference it, and then get different "line" shapefiles with all the different bus routes and shuttles up. I have a bunch of questions in trying to accomplish this. <br>
<br>First of all, I downloaded HyperCube and used Google Earth to get four longitude/latitude points that I could identify on my .jpeg of my neighborhood. Then used the Image to Reference Coordinates utility on HyperCube to add in this data, then resave this as a .tif. <br>
<br>I was sort of skeptical that this could actually make it a geo-referenced TIFF file, so I called <span style="font-family: courier new,monospace;">gdalinfo</span> on it and got:<br><font size="1"><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">/gdalinfo /Library/WebServer/Documents/TrialCampusMap.tif </span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">Warning 1: TIFFReadDirectoryCheckOrder:Invalid TIFF directory; tags are not sorted in ascending order</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">Warning 1: TIFFFetchNormalTag:ASCII value for tag "GeoASCIIParams" does not end in null byte</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">Driver: GTiff/GeoTIFF</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">Size is 1439, 1804</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">Coordinate System is:</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">GEOGCS["WGS 84",</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> DATUM["WGS_1984",</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> SPHEROID["WGS 84",6378137,298.2572235630016,</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> AUTHORITY["EPSG","7030"]],</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> AUTHORITY["EPSG","6326"]],</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> PRIMEM["Greenwich",0],</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> UNIT["degree",0.0174532925199433],</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> AUTHORITY["EPSG","4326"]]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">GeoTransform =</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> -87.60760613250471, 1.981903295209896e-05, -7.648849138569716e-08</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> 41.80965128643957, 3.093930015634964e-07, -1.475797871914549e-05</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">Metadata:</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> AREA_OR_POINT=Point</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> TIFFTAG_XRESOLUTION=72</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> TIFFTAG_YRESOLUTION=72</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> TIFFTAG_RESOLUTIONUNIT=2 (pixels/inch)</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">Image Structure Metadata:</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> INTERLEAVE=PIXEL</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">Corner Coordinates:</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">Upper Left ( -87.6076061, 41.8096513) ( 87d36'27.38"W, 41d48'34.74"N)</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">Lower Left ( -87.6077441, 41.7830279) ( 87d36'27.88"W, 41d46'58.90"N)</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">Upper Right ( -87.5790865, 41.8100965) ( 87d34'44.71"W, 41d48'36.35"N)</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">Lower Right ( -87.5792245, 41.7834731) ( 87d34'45.21"W, 41d47'0.50"N)</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">Center ( -87.5934153, 41.7965622) ( 87d35'36.30"W, 41d47'47.62"N)</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">Band 1 Block=1439x1 Type=Byte, ColorInterp=Red</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">Band 2 Block=1439x1 Type=Byte, ColorInterp=Green</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">Band 3 Block=1439x1 Type=Byte, ColorInterp=Blue</span></font><br><br>First of all -- what are the differences between the two different sets of coordinates in parentheses for "upper left/ lower left.....etc". Next, is this actually a GeoTiff? And moreover, what do I do with it now? I tried displaying it as <br>
<br> LAYER<br> NAME "campusmap"<br> TYPE RASTER<br> STATUS ON<br> DATA "TrialCampusMap.tif"<br> CLASSITEM "[pixel]"<br>
<br>with a GeoTiff OUTPUTFORMAT and also with different types of files as IMAGETYPE. But each time, the image came out as horrible quality, and oddly tilted (though it might be tilted so that the latitude line is the horizontal axis?). Also, I wasn't sure what to use for the EXTENT, and used the numbers -87.60 41.75 -87.57 41.81 which seemed to display the whole map, but this was only after some trial and error with the upperleft/lowerleft, etc. data. How can I normally find the EXTENT?<br>
<br>Second of all - I want to start adding some Vector layers, but the problem is that no shapefiles or anything exist for the data I want to add. I googled about a bit, but didn't find any good advice on how to make your own Vector data from personal knowledge. Can anybody point me in the right direction on this?<br>
<br>Thank you very much,<br><br>Rebecca <br>