GIS Dictionary

[graphics computing] A type of fill pattern created by continuous tiling of either a .bmp (raster image) or a .emf (vector graphic) file.

[statistics] A chart shaped like a circle cut into wedges from a center point, that represents percentage values as proportionally sized “slices.” Pie charts are used to represent the relationship … Read more

[ESRI software] In ArcGlobe, anchoring a vector graphic element to the underlying globe surface so that it remains fixed.

1 [geography] A depression in the earth’s surface. 2 [modeling] In modeling, a point on a surface around which all slopes are positive.

1 [data models] The smallest unit of information in an image or raster map, usually square or rectangular. Pixel is often used synonymously with cell. 2 [remote sensing] In remote … Read more

[ESRI software] The dimensions on the ground of a single pixel in a raster, measured in map units. Pixel size is often used synonymously with cell size.

[graphics computing] The x,y coordinate space defined by the number of pixels in a computer’s display area, with a pixel being a single unit of color on the screen. Most … Read more