ET Geoprocessing: All these functions are free (no restrictions in the DEMO version)
Transfer attributes: Source Target Overlay Point Distance from a polyline theme Reverse Geocode |
Buffer Theme
- User selects a theme to be buffered. Introduces Buffer Theme Dialog. The selected
theme is buffered (if there is a selection only selected features are buffered ) with user
specified constant buffer distance or the value from specified field. New buffer theme is
created Clip - The user selects theme to be clipped (polygon, polyline, point) and a polygon theme to clip with. Only selected features of the clip theme are used. The attributes are transferred according user defined attribute split rules. New theme is created Batch Clip - The user selects themes to be clipped (polygon, polyline, point), directory to store clipped themes and a polygon theme to clip with. Only selected features of the clip theme are used. The attributes are transferred according user defined attribute split rules. The clipped themes will be named after the source themes. Erase with polygon - The user selects theme to be erased (polygon, polyline, point) and a polygon theme to erase with. Only selected features of the erase theme are used. The attributes are transferred according user defined attribute split rules. New theme is created Batch Erase - The user selects themes to be erased (polygon, polyline, point), directory to store resulting themes and a polygon theme to erase with. Only selected features of the erase theme are used. The attributes are transferred according user defined attribute split rules. The resulting themes will be named after the source themes. Attributes from Polygon - The user selects target theme (polygon, polyline, point), source polygon theme, fields to copy and spatial relation (inside, center inside, intersect). For best result on polyline and polygon themes split first with the source polygon theme. Transfer attributes from - The user selects Target theme, Source theme, Fields to be transferred and transfer method depending on the type of the attribute
count = count_A * area_a / area_A + count_B * area_b / area_B
value = value_A * area_a / (area_a + area_b) + value_B * area_b / (area_a + area_b)
area_a / (area_a + area_b) > area_b / (area_a + area_b) ==> type_A area_b / (area_a + area_b) > area_a / (area_a + area_b) ==> type_B Point Distance - Calculates the distance from a point theme to another theme. The results are stored in a field added to the point theme's attribute table. If the source and target theme is the same - the result will be the distance from each point to the closest neighboring point from the same theme. Reverse Geocode - The user selects a polyline source theme and a point target theme. Introduces ET Reverse Geocode dialog. The Type control panel allows to select an option for reverse geocoding:
NOTE: In order to avoid certain problems the address fields should be NUMERIC fields. If your address fields are from type STRING, you will have to create new address fields and calculate the address values from the original ones: [LF] = [L_F_ADD].AsNumber . Before calculating you will have to ensure that there are no values containing non numeric characters ( 31b, 24a etc.) or an empty string. Example: NEW: Measure Points - The function requires a PolylineM(Z) shapefile and a Point shapefile. The measures from the polylines will be transferred to the points from the point theme. The user needs to input:
|