arcgis-desktoparcmapexportlayoutslegend
I have to export a map. In my map, I unified several features under the same colour because because for my job they are exactly the same. My problem is that, when I create a legend, I get something like this:
What I would like to do is to get rid of this long list of features and have in my legend only 4 elements: one marked by a green colour, one by blue color, one by pink and the last one by brown (and then to rename them).
How can I remove the legend items I do not want?
Did some further digging, and it turns out this is a known bug at NIM-000130. There is a suggested coding workaround there. I did find some references to using old mxds or the size of the patch used (smaller makes it worse) causing the width difference, as well as a couple of other workarounds. Otherwise, the methods you originally linked to had some good (or the same) ideas. As it stands there is no way through the UI to remove the patch border for raster (I also tried creating a custom patch, for the record).
Forum Posts:
And a blog entry with another alternative method.
Looking at the examples provided with the ?iconlabels function, the author uses the column landuse from the meuse dataset. That column is from class factor.
So I tried to convert your column cluster from class integer to class factor and it worked.
X = read.table(text="code,cluster,name,longt,latit
101,1,A,-89.6171,35.24992
105,1,B,-90.0154,35.10510
106,2,C,-89.5213,34.93277
111,1,D,-86.8642,36.34807
113,3,E,-86.6125,36.19958
114,2,F,-90.4611,30.02196",
header=TRUE,sep=",")
X$cluster = as.factor(X$cluster)
X1 <- X
require(sp)
coordinates(X1) <- ~longt+latit # convert to SPDF
proj4string(X1) <- CRS("+proj=longlat +datum=WGS84 +ellps=WGS84 +towgs84=0,0,0")
require(plotGoogleMaps)
ic <- iconlabels(X1$cluster,height=10,icon=TRUE,colPalette=rainbow(3))
m <- plotGoogleMaps(X1,zcol="cluster",filename='myMap.htm',iconMarker=ic,
colPalette=rainbow(3),mapTypeId='ROADMAP',layerName='Clusters')
Best Answer
If there are really only four colors, then you can simply go into the layer's Symbology tab and group all of the same colors together into one symbol. That will leave you with 4 symbols. Just select all the legend entries you'd like to group together, right-click them, and select "Group Values" from the context menu:
Or, if the colors vary slightly you can copy and paste the layer as a new layer. Then go into the new layer's symbology and remove all the items you don't want to show and rename the ones you do want to show. Then you can just show the new layer in the legend but keep the old layer turned on.