Sorting of regions with respect to their relative position.
The operator ::sort_region sorts the regions with respect to their relative position. All sorting methods with the exception of 'character' use one point of the region. With the help of the parameter RowOrCol = 'row' these points will be sorted according to their row and then according to their column By using 'column', the column value will be used first. The following values are available for the parameter SortMode:
'character'
The regions will be treated like characters in a row
and will be sorted according to their order in the line:
If two regions overlap horizontally, they will be sorted
with respect to their column values, otherwise they will
be sorted with regard to their row values.
'first_point'
The point with the lowest column value in the first row
of the region.
'last_point'
The point with the highest column value in the last row
of the region.
'upper_left'
Upper left corner of the surrounding rectangle.
'upper_right'
Upper right corner of the surrounding rectangle.
'lower_left'
Lower left corner of the surrounding rectangle.
'lower_right'
Lower right corner of the surrounding rectangle.
The parameter Order determines whether the
sorting order is increasing or decreasing: using
'true' the order will be increasing, using
'false' the order will be decreasing.
|
Regions (input_object) |
region-array -> Hobject: HRegionArray |
| Regions to be sorted. | |
|
SortedRegions (output_object) |
region-array -> Hobject * : HRegionArray |
| Sorted regions. | |
|
SortMode (input_control) |
string -> HTuple.char * |
| Kind of sorting. | |
| Default value: 'first_point' | |
| List of values: 'character', 'first_point', 'last_point', 'upper_left', 'lower_left', 'upper_right', 'lower_right' | |
|
Order (input_control) |
string -> HTuple.char * |
| Increasing or decreasing sorting order. | |
| Default value: 'true' | |
| List of values: 'true', 'false' | |
|
RowOrCol (input_control) |
string -> HTuple.char * |
| Sorting first with respect to row, then to column. | |
| Default value: 'row' | |
| List of values: 'row', 'column' | |
If the parameters are correct, the operator ::sort_region returns the value H_MSG_TRUE. Otherwise an exception will be raised.
::do_ocr_multi, ::do_ocr_single
Region processing
