# Tag Info

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It sounds like you need to use either the Summary Statistics tool (Analysis Toolbox/Statisics Toolset) or the Dissolve tool (Data Management Toolbox/Generalize Toolset), depending on whether you just want a related Table or a related Feature Class as your output. You would need to put both the [municipal_name] and the [Interface_Type] fields into the Case ...

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Calculate a square that meets your perimeter length or area requirement, then create a circle buffer where buffer distance = len/2 Convert the circle to envelope and that will create the square. In this case your square will be 200 ft on each side If your features are poly or line geometry then convert features to point Create a 100 ft buffer from each ...

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Get the geometry from json, convert it to a projected CRS, and then do your calculation on the converted geometry.

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Sounds like you're prepared to use different coordinate systems for different countries. Where possible, UTM, as you mention, would be an excellent choice. For countries that are too large for that, I suggest Sinusoidal, or Cylindrical Equal Area, or Albers Equal Area Conic. In all cases you can manipulate the central meridian and standard parallel(s) so ...

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You can use Web Mercator (like google) which shares some of the same properties of the standard Mercator projection: north is up everywhere, meridians are equally spaced vertical lines, but areas near the poles are greatly exaggerated. Unlike the ellipsoidal Mercator and spherical Mercator, the Web Mercator is not quite conformal due to its use of ...

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There are several projected coordinate systems that are valid for the whole Australia. I suggest that you use Australia Albers equal area because global projection often induce more distortions locally. For a global projection suitable for Australia, Hobo-Dyer (a cylindrical equal area projection) could be good too. As you can see on wikipedia, the Tissot ...

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Add a new field in the attribute table. Give it a name like "area" with a float data type. Right click the new field and select calculate geometry and specify the units you want to display. Once this is done you can select the land cover type you to analyze using the select by attributes tool. Once the desired features are selected, right click the area ...

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If these are vector polygons you would open the attribute table, create a new field called area, then right click on the AREA header to the table, and select the calculate geometry option, select area and the unit of measurement you prefer.

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Using turf.js with Leaflet, you should be able to create the web map you describe. See this example: http://jsfiddle.net/nathansnider/rzyvudkb/ I used an online converter to create a GeoJSON object from your data. The boss names are retained in the GeoJSON properties, so they can be used to filter the casinos. The method I'm using here also relies on a ...

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1) Build raster attribute table (if it doesn't already exist) 2) Create new field to store the area 3) Use field calculator to calculate the areas using the "count" field and the cell size of your raster: area = count * cellsize^2 This will be in square meters, assuming that your cell size is in meters. You can divide by 1,000,000 if you'd rather have ...

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There are a couple steps involved as opposed to a single function. Use the Raster to Polygon conversion tool to convert your classified raster to vector format subset by class (select your land use as the second parameter in the Raster to Polygon tool). From there you can access the attribute table and use calculate geometry on the area field to derive ...

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The calculation gives the right output. As you cited the documentation states "by default area is determined on a spheroid with units in square meters". The result of your query is 5807028547.33813 m^2. To get the area in km^2 you have to devide the result by 1,000,000. 5807028547.33813 m^2 / 1,000,000 = 5807.02854733813 km^2 5807.02854733813 km^2 ...

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This should help get you started with editing: ArcGIS 10: Editing & Creating Your Own Shapefiles You can also measure areas and distances without creating polygons using the measurement tool in ArcMap You can't edit a scanned map directly, you need to create a polygon shapefile that will hold the polygons you draw on top of your scanned map. The first ...

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have you double-checked that 'Massachusetts' is the exact content of the column you want to filter? If the content were 'massachusetts' the expression would return false and no geometry would be selected. Also, is 'name' the name of the column? It could also be something like 'state' and that could break your query too. We would need some more information ...

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Any global equal-area projection will give you a consistent measurement of area on the surface of the Earth.

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