Figure 6From: Selecting the optimal healthcare centers with a modified P-median model: a visual analytic perspectiveChoosing optimal healthcare centers in a hybrid transportation network with (a) parallel coordinate plot, (b) bivariate geomap, and (c) space filling raster. (Note: Two variables, namely, total cost and travel cost, are visualized in space filling raster. Total cost is represented with a color ramp from gray to purple and travel cost is ascendingly sorted with a scan line from left to right and bottom to top.).Back to article page