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I solved a similar problem by using buffers to extend each line by what I estimated the accuracy of my lines to be (to smooth small imperfections). Then follow these steps Merge all buffers into one file Use union on the merged buffers Each overlapping area will be represented by identical polygons that are identical to each other, but are in the exact ...


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For a purely graphical purpose, I would do an overlay (like Union) of all your route lines and in the resulting attribute table you'll either have or can add a field with a count of the number of lines that went into it. For example you may have one segment where A and C overlap but not B, or B and C but not A. The Union's results should have an attribute ...


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Part of what you're running into is a screen resolution issue. Points can only be displayed down to a certain size relative to everything else, and sometimes values will fall between two distinguishable sizes and get rounded one way or the other on the screen. There are only so many individual pixels on your screen with which to draw everything. This effect ...


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The short answer is yes, you can make points smaller than 1.0. There could be a few different things going on: (1) Are you in map view or layout view? The map data view may be scaling your points so that they appear the same size as you zoom in. (2) It is very difficult to eyeball the difference between 1.0 and 0.5, for example. On my screen they look the ...


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The size they are represented is also linked to how big your map is when you are exporting it (assuming you are exporting it) so yes a point can be displayed at less than size 1 but it depnds on what you want to do next. However if you have a lot of points and reducing the size doesn't help an alternative that might be worth looking into is the Point ...


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To label your features enable "Label this layer with" in the Layer properties > Labels by selecting the specific column from your attribute table. Then there are several possibilities to format the labels.


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You can also use the "rule based" under the Style option if you have a different colum for each attribute (if schools are in a different colum from toilets).


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In a first run, style your data using the categorized style on the attribute field. Then you can change every category style to fit your individual needs. Not only the colour as the default style does, but also another symbol, or SVG.


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I certainly wish that more people would be as concerned about the display of digital elevation data as you are. I see so many examples of poorly rendered DEMs that it's somewhat disconcerting. So thank you for raising this question. First, to answer your question of "how can I be sure that I am using a correct setting", I don't think that there is such thing ...


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Perhaps you could use the "Unique Values, Many Fields" symbology option and choose the number field then the description field: Then when you insert the legend it will show the number and the description: Its not perfect because it doesn't show the number inside the symbol but it might do the trick and I bet if you convert the legent to graphic then do ...


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You can't easily display label information in the legend, so the best solution is to have unique symbology for each of your points. The simplest way to do this is to open the properties for your layer and and select the Categories option on the left hand side (see below). You can then select the field to create a different symbology for each point. ...


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For a DEM, I would expect regular interval (similar to what you get with contour lines). Therefore, I would recommend a linear stretch. Maybe you could just increase the contrast in the area where you have the most data by sacrifying the contrast for the very few very high pixels (summits). So putting your line from the bottom left (0,0) to (6,8) counting ...


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If your values are Normally distributed then approximately 68%, 95% & 99.7% of the values lie within 1, 2 & 3 Standard Deviations respectively, see here, so if you are stretching your values of the colour map using SD(2) all of the values that are below 2.5% will be black and all over 97.5% will be white, (depending on your colour scale of course) - ...


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Remove the outline of the feature style in Layer Properties | Style or turn it white - depending on which effect you prefer.


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https://rbcgis.wordpress.com/2014/11/19/qgis-svg-fill/ Thanks again for the help everyone, I made a tutorial to show how I did it.


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I do not believe this works in Version 2.6 having played with this for 3 hours and no joy. If it is an implementation, it is far from intuitive. Can we have a link to an updated and correct tutorial?


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I've just tested the code below and it works fine. You need to be careful in your code that you don't try and apply symbology to the template raster itself otherwise you'll receive an error so I've added an if statement. import arcpy mxd = arcpy.mapping.MapDocument("CURRENT") df = arcpy.mapping.ListDataFrames(mxd)[0] rasters = arcpy.mapping.ListLayers(mxd, ...


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The code below works for me, though I think it's a bit sloppy. I had to include make raster layer and save to layer for it to work. arcpy.MakeRasterLayer_management(in_raster, out_raster) arcpy.SaveToLayerFile_management(out_raster, display_raster, "ABSOLUTE") # Adjust symbology of Raster layer ...


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There's a few minor hiccups in your code, I've re-written it (hopefully) better: import arcpy arcpy.env.workspace = "c:\DEM Files" # not requred mxd = arcpy.mapping.MapDocument("Current") # This MXD df = arcpy.mapping.ListDataFrames(mxd,"Georgia")[0] # the first data frame called Georgia rasters = arcpy.mapping.ListLayers(mxd,"*",df) # all the layers # ...


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What is "Feature_El147"? The help for that function says that the second argument has to be a: Feature Layer; Raster Layer;TIN Layer; Network Analysis Layer;Geostatistical Layer. Which in this context refers to a layer currently in the map document that has the symbology you want. Is that how you've got it set up?


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Assuming you are using ArcGIS Desktop... You can symbolize based on multiple attributes but it is limited to 3 fields not 4. The quickest thing I would do is to create a new field and just concatenate fields A,B,C, and D to give you a code. This would give you data like 1121 2311 3312 and so on. Then you would just have to symbolize each ... nevermind ...


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I came across this same problem, I think.... If I understand it right you had two (or more) datasets and you need to get the dataset scale ranges to match so that comparisons can be made. I solved it by: Create you're first dataset as you want it to appear. Ideally with the largest data range just so that symbols can be copied over easier to the second ...


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If I understand it correctly, you are trying to rotate symbols for point features. Rotating the point features themselves won't work. A point is a point, and has no direction. You should be able to perform symbol rotation through the layer's symbology tab, choose advanced and then rotation. You will need a field with rotation values for this in geographic or ...


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This following code works for me, though it might be messy. Note: This code only works for me when using ArcMap v10.0 and v10.1. There's also an issue when adding raster layers to a map (using MakeRasterLayer instead of MakeFeatureLayer). It adds the map to the display properly, but it is sourced to a temporary location rather than the workspace folder. ...



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