def prepare(self, canvasItemList):
if self.version < 2.4:
resultPathRubberBand = canvasItemList['path']
resultPathRubberBand.reset(Utils.getRubberBandType(False))
else:
resultPathsRubberBands = canvasItemList['paths']
for path in resultPathsRubberBands:
path.reset(Utils.getRubberBandType(False))
canvasItemList['paths'] = []
def draw(self, rows, con, args, geomType, canvasItemList, mapCanvas):
''' draw the result '''
resultPathsRubberBands = canvasItemList['paths']
rubberBand = None
cur_route_id = -1
for row in rows:
cur2 = con.cursor()
if self.version < 2.1:
args['result_route_id'] = row[1]
args['result_node_id'] = row[2]
args['result_edge_id'] = row[3]
args['result_cost'] = row[4]
else:
args['result_route_id'] = row[2]
args['result_node_id'] = row[4]
args['result_edge_id'] = row[5]
args['result_cost'] = row[6]
if args['result_route_id'] != cur_route_id:
cur_route_id = args['result_route_id']
if rubberBand:
resultPathsRubberBands.append(rubberBand)
rubberBand = None
rubberBand = QgsRubberBand(mapCanvas,
Utils.getRubberBandType(False))
rubberBand.setColor(QColor(255, 0, 0, 128))
rubberBand.setWidth(4)
if args['result_edge_id'] != -1:
#if args['result_edge_id'] != 0: # pgRouting <= 2.0.0rc1
query2 = """
SELECT ST_AsText(%(transform_s)s%(geometry)s%(transform_e)s) FROM %(edge_table)s
WHERE %(source)s = %(result_node_id)d AND %(id)s = %(result_edge_id)d
UNION
SELECT ST_AsText(%(transform_s)sST_Reverse(%(geometry)s)%(transform_e)s) FROM %(edge_table)s
WHERE %(target)s = %(result_node_id)d AND %(id)s = %(result_edge_id)d;
""" % args
##Utils.logMessage(query2)
cur2.execute(query2)
row2 = cur2.fetchone()
##Utils.logMessage(str(row2[0]))
assert row2, "Invalid result geometry. (route_id:%(result_route_id)d, node_id:%(result_node_id)d, edge_id:%(result_edge_id)d)" % args
geom = QgsGeometry().fromWkt(str(row2[0]))
if geom.wkbType() == QgsWkbTypes.MultiLineString:
for line in geom.asMultiPolyline():
for pt in line:
rubberBand.addPoint(pt)
elif geom.wkbType() == QgsWkbTypes.LineString:
for pt in geom.asPolyline():
rubberBand.addPoint(pt)
if rubberBand:
resultPathsRubberBands.append(rubberBand)
rubberBand = None
def drawManyPaths(self, rows, columns, con, args, geomType, canvasItemList, mapCanvas):
'''
draws multi line string on the mapCanvas.
'''
resultPathsRubberBands = canvasItemList['paths']
rubberBand = None
cur_path_id = None
for row in rows:
cur2 = con.cursor()
result_path_id = str(row[columns[0]])
args['result_node_id'] = sql.Literal(row[columns[1]])
args['result_edge_id'] = sql.Literal(row[columns[2]])
if result_path_id != cur_path_id:
cur_path_id = result_path_id
if rubberBand:
resultPathsRubberBands.append(rubberBand)
rubberBand = None
rubberBand = QgsRubberBand(mapCanvas, Utils.getRubberBandType(False))
rubberBand.setColor(QColor(255, 0, 0, 128))
rubberBand.setWidth(4)
if row[columns[2]] != -1:
query2 = sql.SQL("""
SELECT ST_AsText({transform_s}{geometry}{transform_e})
FROM {edge_schema}.{edge_table}
WHERE {source} = {result_node_id} AND {id} = {result_edge_id}
UNION
SELECT ST_AsText({transform_s}ST_Reverse({geometry}){transform_e})
FROM {edge_schema}.{edge_table}
WHERE {target} = {result_node_id} AND {id} = {result_edge_id}
""").format(**args).as_string(con)
cur2.execute(query2)
row2 = cur2.fetchone()
geom = QgsGeometry().fromWkt(str(row2[0]))
if geom.wkbType() == QgsWkbTypes.MultiLineString:
for line in geom.asMultiPolyline():
for pt in line:
rubberBand.addPoint(pt)
elif geom.wkbType() == QgsWkbTypes.LineString:
for pt in geom.asPolyline():
rubberBand.addPoint(pt)
if rubberBand:
resultPathsRubberBands.append(rubberBand)
rubberBand = None
def prepare(self, canvasItemList):
resultPathsRubberBands = canvasItemList['paths']
for path in resultPathsRubberBands:
path.reset(Utils.getRubberBandType(False))
canvasItemList['paths'] = []
def draw(self, rows, con, args, geomType, canvasItemList, mapCanvas):
''' draw the result '''
resultPathsRubberBands = canvasItemList['paths']
rubberBand = None
cur_path_id = -1
for row in rows:
cur2 = con.cursor()
args['result_path_id'] = row[0]
args['result_source_id'] = row[1]
args['result_target_id'] = row[2]
args['result_cost'] = row[3]
if args['result_path_id'] != cur_path_id:
cur_path_id = args['result_path_id']
if rubberBand:
resultPathsRubberBands.append(rubberBand)
rubberBand = None
rubberBand = QgsRubberBand(mapCanvas,
Utils.getRubberBandType(False))
rubberBand.setColor(QColor(255, 0, 0, 128))
rubberBand.setWidth(4)
if args['result_cost'] != -1:
query2 = """
SELECT ST_AsText( ST_MakeLine(
(SELECT the_geom FROM %(edge_table)s_vertices_pgr WHERE id = %(result_source_id)d),
(SELECT the_geom FROM %(edge_table)s_vertices_pgr WHERE id = %(result_target_id)d)
))
""" % args
##Utils.logMessage(query2)
cur2.execute(query2)
row2 = cur2.fetchone()
##Utils.logMessage(str(row2[0]))
assert row2, "Invalid result geometry. (path_id:%(result_path_id)d, saource_id:%(result_source_id)d, target_id:%(result_target_id)d)" % args
geom = QgsGeometry().fromWkt(str(row2[0]))
if geom.wkbType() == QgsWkbTypes.MultiLineString:
for line in geom.asMultiPolyline():
for pt in line:
rubberBand.addPoint(pt)
elif geom.wkbType() == QgsWkbTypes.LineString:
for pt in geom.asPolyline():
rubberBand.addPoint(pt)
if rubberBand:
resultPathsRubberBands.append(rubberBand)
rubberBand = None
resultNodesTextAnnotations = canvasItemList['annotations']
Utils.setStartPoint(geomType, args)
Utils.setEndPoint(geomType, args)
for row in rows:
cur2 = con.cursor()
args['result_seq'] = row[0]
args['result_source_id'] = row[1]
args['result_target_id'] = row[2]
args['result_cost'] = row[3]
query2 = """
SELECT ST_AsText(%(transform_s)s%(startpoint)s%(transform_e)s) FROM %(edge_table)s
WHERE %(source)s = %(result_target_id)d
UNION
SELECT ST_AsText(%(transform_s)s%(endpoint)s%(transform_e)s) FROM %(edge_table)s
WHERE %(target)s = %(result_target_id)d
""" % args
cur2.execute(query2)
row2 = cur2.fetchone()
assert row2, "Invalid result geometry. (target_id:%(result_target_id)d)" % args
geom = QgsGeometry().fromWkt(str(row2[0]))
pt = geom.asPoint()
textDocument = QTextDocument(
"%(result_target_id)d:%(result_cost)f" % args)
textAnnotation = QgsTextAnnotation()
textAnnotation.setMapPosition(geom.asPoint())
textAnnotation.setFrameSize(QSizeF(textDocument.idealWidth(), 20))
textAnnotation.setFrameOffsetFromReferencePoint(QPointF(20, -40))
textAnnotation.setDocument(textDocument)
QgsMapCanvasAnnotationItem(textAnnotation, mapCanvas)
resultNodesTextAnnotations.append(textAnnotation)
def drawCostPaths(self, rows, con, args, geomType, canvasItemList, mapCanvas):
resultPathsRubberBands = canvasItemList['paths']
rubberBand = None
cur_path_id = -1
for row in rows:
cur2 = con.cursor()
args['result_path_id'] = row[0]
args['result_source_id'] = sql.Literal(row[1])
args['result_target_id'] = sql.Literal(row[2])
args['result_cost'] = row[3]
if args['result_path_id'] != cur_path_id:
cur_path_id = args['result_path_id']
if rubberBand:
resultPathsRubberBands.append(rubberBand)
rubberBand = None
rubberBand = QgsRubberBand(mapCanvas, Utils.getRubberBandType(False))
rubberBand.setColor(QColor(255, 0, 0, 128))
rubberBand.setWidth(4)
if args['result_cost'] != -1:
query2 = sql.SQL("""
SELECT ST_AsText( ST_MakeLine(
(SELECT {geometry_vt} FROM {vertex_schema}.{vertex_table} WHERE id = {result_source_id}),
(SELECT {geometry_vt} FROM {vertex_schema}.{vertex_table} WHERE id = {result_target_id})
))
""").format(**args)
# Utils.logMessage(query2)
cur2.execute(query2)
row2 = cur2.fetchone()
# Utils.logMessage(str(row2[0]))
geom = QgsGeometry().fromWkt(str(row2[0]))
if geom.wkbType() == QgsWkbTypes.MultiLineString:
for line in geom.asMultiPolyline():
for pt in line:
rubberBand.addPoint(pt)
elif geom.wkbType() == QgsWkbTypes.LineString:
for pt in geom.asPolyline():
rubberBand.addPoint(pt)
# TODO label the edge instead of labeling the target points
if rubberBand:
resultPathsRubberBands.append(rubberBand)
rubberBand = None
resultNodesTextAnnotations = canvasItemList['annotations']
for row in rows:
cur2 = con.cursor()
args['result_seq'] = row[0]
args['result_source_id'] = sql.Literal(row[1])
result_target_id = row[2]
args['result_target_id'] = sql.Literal(result_target_id)
result_cost = row[3]
query2 = sql.SQL("""
SELECT ST_AsText( ST_startPoint({geometry}) ) FROM {edge_schema}.{edge_table}
WHERE {source} = {result_target_id}
UNION
SELECT ST_AsText( ST_endPoint( {geometry} ) ) FROM {edge_schema}.{edge_table}
WHERE {target} = {result_target_id}
""").format(**args)
cur2.execute(query2)
row2 = cur2.fetchone()
geom = QgsGeometry().fromWkt(str(row2[0]))
pt = geom.asPoint()
textDocument = QTextDocument("{0!s}:{1}".format(result_target_id, result_cost))
textAnnotation = QgsTextAnnotation()
textAnnotation.setMapPosition(geom.asPoint())
textAnnotation.setFrameSize(QSizeF(textDocument.idealWidth(), 20))
textAnnotation.setFrameOffsetFromReferencePoint(QPointF(20, -40))
textAnnotation.setDocument(textDocument)
QgsMapCanvasAnnotationItem(textAnnotation, mapCanvas)
resultNodesTextAnnotations.append(textAnnotation)
def prepare(self, canvasItemList):
resultPathRubberBand = canvasItemList['path']
resultPathRubberBand.reset(Utils.getRubberBandType(False))
def prepare(self, canvasItemList):
resultAreaRubberBand = canvasItemList['area']
resultAreaRubberBand.reset(Utils.getRubberBandType(True))
def prepare(self, canvasItemList):
resultPathsRubberBands = canvasItemList['paths']
for path in resultPathsRubberBands:
path.reset(Utils.getRubberBandType(False))
canvasItemList['paths'] = []
def draw(self, rows, con, args, geomType, canvasItemList, mapCanvas):
''' draw the result '''
resultPathsRubberBands = canvasItemList['paths']
rubberBand = None
cur_path_id = -1
i = 0
count = len(rows)
ids = args['ids'].split(',')
args['last_id'] = ids[len(ids) - 1]
pcts = args['pcts'].split(',')
pct_idx = 0
for row in rows:
cur2 = con.cursor()
args['result_path_id'] = row[1]
args['result_node_id'] = row[2]
args['result_edge_id'] = row[3]
args['result_cost'] = row[4]
if args['result_path_id'] != cur_path_id:
cur_path_id = args['result_path_id']
if rubberBand:
resultPathsRubberBands.append(rubberBand)
rubberBand = None
rubberBand = QgsRubberBand(mapCanvas,
Utils.getRubberBandType(False))
rubberBand.setColor(QColor(255, 0, 0, 128))
rubberBand.setWidth(4)
query2 = ""
if i < (count - 1):
args['result_next_path_id'] = rows[i + 1][1]
args['result_next_node_id'] = rows[i + 1][2]
if args['result_next_path_id'] != args['result_path_id']:
pct_idx += 1
elif i == (count - 1):
pct_idx = len(pcts) - 1
args['current_pct'] = pcts[pct_idx]
if i == 0 and args['result_node_id'] == -1:
query2 = """
SELECT ST_AsText(%(transform_s)sST_Line_Substring(%(geometry)s, %(current_pct)s, 1.0)%(transform_e)s) FROM %(edge_table)s
WHERE %(target)s = %(result_next_node_id)s AND %(id)s = %(result_edge_id)s
UNION
SELECT ST_AsText(%(transform_s)sST_Line_Substring(ST_Reverse(%(geometry)s), 1.0 - %(current_pct)s, 1.0)%(transform_e)s) FROM %(edge_table)s
WHERE %(source)s = %(result_next_node_id)s AND %(id)s = %(result_edge_id)s;
""" % args
elif i < (count - 1) and (
args['result_path_id'] != args['result_next_path_id']
) and (args['result_node_id'] == args['result_next_node_id']):
# round trip case
query2 = """
SELECT ST_AsText(ST_LineMerge(ST_Collect(ARRAY[
(
SELECT ST_AsText(%(transform_s)sST_Line_Substring(%(geometry)s, 0.0, %(current_pct)s)%(transform_e)s) FROM %(edge_table)s
WHERE %(source)s = %(result_node_id)s AND %(id)s = %(result_edge_id)s
UNION
SELECT ST_AsText(%(transform_s)sST_Line_Substring(ST_Reverse(%(geometry)s), 0.0, 1.0 - %(current_pct)s)%(transform_e)s) FROM %(edge_table)s
WHERE %(target)s = %(result_node_id)s AND %(id)s = %(result_edge_id)s
),
(
SELECT ST_AsText(%(transform_s)sST_Reverse(ST_Line_Substring(%(geometry)s, 0.0, %(current_pct)s))%(transform_e)s) FROM %(edge_table)s
WHERE %(source)s = %(result_node_id)s AND %(id)s = %(result_edge_id)s
UNION
SELECT ST_AsText(%(transform_s)sST_Reverse(ST_Line_Substring(ST_Reverse(%(geometry)s), 0.0, 1.0 - %(current_pct)s))%(transform_e)s) FROM %(edge_table)s
WHERE %(target)s = %(result_node_id)s AND %(id)s = %(result_edge_id)s
)])));
""" % args
elif i == (count - 1) and (
(args['result_edge_id'] == -1) or
(str(args['result_edge_id']) == args['last_id'])):
if args['result_edge_id'] != -1:
query2 = """
SELECT ST_AsText(%(transform_s)sST_Line_Substring(%(geometry)s, 0.0, %(current_pct)s)%(transform_e)s) FROM %(edge_table)s
WHERE %(source)s = %(result_node_id)s AND %(id)s = %(result_edge_id)s
UNION
SELECT ST_AsText(%(transform_s)sST_Line_Substring(ST_Reverse(%(geometry)s), 0.0, 1.0 - %(current_pct)s)%(transform_e)s) FROM %(edge_table)s
WHERE %(target)s = %(result_node_id)s AND %(id)s = %(result_edge_id)s;
""" % args
else:
break
else:
query2 = """
SELECT ST_AsText(%(transform_s)s%(geometry)s%(transform_e)s) FROM %(edge_table)s
WHERE %(source)s = %(result_node_id)d AND %(id)s = %(result_edge_id)d
UNION
SELECT ST_AsText(%(transform_s)sST_Reverse(%(geometry)s)%(transform_e)s) FROM %(edge_table)s
WHERE %(target)s = %(result_node_id)d AND %(id)s = %(result_edge_id)d;
""" % args
##Utils.logMessage(query2)
cur2.execute(query2)
row2 = cur2.fetchone()
##Utils.logMessage(str(row2[0]))
assert row2, "Invalid result geometry. (node_id:%(result_node_id)d, edge_id:%(result_edge_id)d)" % args
geom = QgsGeometry().fromWkt(str(row2[0]))
if geom.wkbType() == QgsWkbTypes.MultiLineString:
for line in geom.asMultiPolyline():
for pt in line:
rubberBand.addPoint(pt)
elif geom.wkbType() == QgsWkbTypes.LineString:
for pt in geom.asPolyline():
rubberBand.addPoint(pt)
i = i + 1
if rubberBand:
resultPathsRubberBands.append(rubberBand)
rubberBand = None