Application: gvSIG desktop » gvSIG geoprocess

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        <help>

                <element name="DESCRIPTION" text="This algorithm calculates the mean center and the standard distance, creating a new layer with a circle centered on the mean center and with radius equal to the standard distance.&#10;&#10;The Mean center is the spatial equivalent of the mean value, and represent the point nearest to all the input points, on average.  Points can be weighed. If, for instance, points represent cities, they can be weighed using the population of each city. In this case, the mean center would be the point nearest to all the inhabitants of the region, on average.&#10;&#10;The standard distance is que spatial equivalent of the standard deviation." description="Description" type="0">

                        <image description="  calculated standard distance in the mean center." file="centro_media_y_distancia_tipica.jpg">

                        </image>

                </element>

                <element name="ADDITIONAL_INFO" text="" description="Additional information" type="0">

                </element>

                <element name="EXTENSION_AUTHOR" text="Victor Olaya" description="Extension created by" type="0">

                </element>

                <element name="HELP_AUTHOR" text="Victor Olaya" description="Help file created by" type="0">

                </element>

                <element name="USER_NOTES" text="" description="User_notes" type="0">

                </element>

                <element name="POINTS" text="The input points layer" description="Points" type="3">

                </element>

                <element name="FIELD" text="Field to use for weighing points" description="Weights" type="3">

                </element>

                <element name="METHOD" text="the following options are available&#10;* Mean center: all points have the same weight&#10;* Weighted mean center: weights are assigned using the selected field" description="Method" type="3">

                </element>

                <element name="OUTPUT_DESCRIPTION" text="" description="Description" type="2">

                </element>

                <element name="RESULT" text="A layer with a circle radius equal to standard distance and centered in the geographic mean center. The attributes table contains a single field, with the standard deviation." description="Mean center and standard distance" type="2">

                </element>

        </help>

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