def drawMeasureAreaOnVideo(values, painter, surface, gt):
''' Draw Measure Area on Video '''
a_value = sphere.polygon_area([values])
poly = []
lat = []
long = []
for pt in values:
if hasElevationModel():
pt = GetLine3DIntersectionWithPlane(
GetSensor(), pt, GetFrameCenter()[2])
scr_x, scr_y = vut.GetInverseMatrix(
pt[1], pt[0], gt, surface)
center = QPoint(scr_x, scr_y)
poly.append(center)
lat.append(pt[0])
long.append(pt[1])
# Fix: Temporary correction
# mousePressEvent calls after mouseMoveEvent.
# A problem occurs because the centroid is miscalculated.
# We remove duplicates values
lat = list(dict.fromkeys(lat))
long = list(dict.fromkeys(long))
# Calculate Centroid Position
scr_x, scr_y = vut.GetInverseMatrix(
sum(long)/len(long), sum(lat)/len(lat), gt, surface)
centroid = QPoint(scr_x, scr_y)
# Create Poligon
polygon = QPolygonF(poly)
path = QPainterPath()
path.addPolygon(polygon)
painter.setFont(DrawToolBar.bold_12)
painter.setPen(MeasurePen)
painter.drawPolygon(polygon)
painter.fillPath(path, MeasureBrush)
painter.setPen(DrawToolBar.white_pen)
painter.drawPoints(polygon)
# Area
if a_value >= 10000:
painter.drawText(centroid , str(round(a_value/1000000, 2)) + " km²")
else:
painter.drawText(centroid , str(round(a_value, 2)) + " m²")
return
def drawMeasureAreaOnVideo(values, painter, surface, gt):
""" Draw Measure Area on Video """
da = QgsDistanceArea()
da.setEllipsoid(WGS84String)
points = []
poly = []
for pt in values:
scr_x, scr_y = vut.GetInverseMatrix(pt[1], pt[0], gt, surface)
center = QPoint(scr_x, scr_y)
poly.append(center)
points.append(QgsPointXY(pt[1], pt[0]))
# Create Video Polygon
polygon = QPolygonF(poly)
path = QPainterPath()
path.addPolygon(polygon)
painter.setFont(DrawToolBar.bold_12)
painter.setPen(MeasurePen)
painter.drawPolygon(polygon)
painter.fillPath(path, MeasureBrush)
painter.setPen(DrawToolBar.white_pen)
painter.drawPoints(polygon)
# Create QGIS Polygon
mapPolygon = QgsGeometry.fromPolygonXY([points])
# Calculate polygon area
area = da.measureArea(mapPolygon)
try:
ctr = mapPolygon.centroid().asPoint()
# Calculate Centroid Position
scr_x, scr_y = vut.GetInverseMatrix(ctr.x(), ctr.y(), gt, surface)
centroid = QPoint(scr_x, scr_y)
# Area
if area >= 10000:
painter.drawText(
centroid,
str(round(da.convertAreaMeasurement(area, 1), 2)) + " km²")
else:
painter.drawText(centroid, str(round(area, 2)) + " m²")
except Exception:
None
return
def drawMeasureAreaOnVideo(values, painter, surface, gt):
''' Draw Measure Area on Video '''
a_value = sphere.polygon_area([values])
poly = []
lat = []
long = []
for pt in values:
scr_x, scr_y = vut.GetInverseMatrix(pt[1], pt[0], gt, surface)
center = QPoint(scr_x, scr_y)
poly.append(center)
lat.append(pt[0])
long.append(pt[1])
lat = list(dict.fromkeys(lat))
long = list(dict.fromkeys(long))
# Calculate Centroid Position
scr_x, scr_y = vut.GetInverseMatrix(
sum(long) / len(long),
sum(lat) / len(lat), gt, surface)
centroid = QPoint(scr_x, scr_y)
# Create Poligon
polygon = QPolygonF(poly)
path = QPainterPath()
path.addPolygon(polygon)
painter.setFont(DrawToolBar.bold_12)
painter.setPen(MeasurePen)
painter.drawPolygon(polygon)
painter.fillPath(path, MeasureBrush)
painter.setPen(DrawToolBar.white_pen)
painter.drawPoints(polygon)
# Area
if a_value >= 10000:
painter.drawText(centroid,
str(round(a_value / 1000000, 2)) + " km²")
else:
painter.drawText(centroid, str(round(a_value, 2)) + " m²")
return
def drawPolygonOnVideo(values, painter, surface, gt):
''' Draw Polygons on Video '''
poly = []
for pt in values:
scr_x, scr_y = vut.GetInverseMatrix(pt[1], pt[0], gt, surface)
center = QPoint(scr_x, scr_y)
poly.append(center)
polygon = QPolygonF(poly)
path = QPainterPath()
path.addPolygon(polygon)
painter.setPen(PolyPen)
painter.drawPolygon(polygon)
painter.fillPath(path, PolyBrush)
painter.setPen(DrawToolBar.white_pen)
painter.drawPoints(polygon)
return
def drawPolygonOnVideo(values, painter, surface, gt):
''' Draw Polygons on Video '''
poly = []
for pt in values:
if hasElevationModel():
pt = GetLine3DIntersectionWithPlane(GetSensor(), pt,
GetFrameCenter()[2])
scr_x, scr_y = vut.GetInverseMatrix(pt[1], pt[0], gt, surface)
center = QPoint(scr_x, scr_y)
poly.append(center)
polygon = QPolygonF(poly)
path = QPainterPath()
path.addPolygon(polygon)
painter.setPen(PolyPen)
painter.drawPolygon(polygon)
painter.fillPath(path, PolyBrush)
painter.setPen(DrawToolBar.white_pen)
painter.drawPoints(polygon)
return
def paint(self, painter, xxx, xxx2):
self.setPos(self.toCanvasCoordinates(self.map_pos))
halfSize = self.size / 2.0
rect = QRectF(0 - halfSize, 0 - halfSize, self.size, self.size)
painter.setRenderHint(QPainter.Antialiasing)
if self.quality == 0:
color = self.red
elif self.quality == 1:
color = self.green
elif self.quality >= 2:
color = self.blue
else:
color = self.red
self.pointpen.setColor(Qt.gray)
self.pointpen.setWidth(2)
self.pointbrush.setColor(color)
painter.setBrush(self.pointbrush)
painter.setPen(self.pointpen)
y = 0 - halfSize
x = rect.width() / 2 - halfSize
line = QLine(x, y, x, rect.height() - halfSize)
y = rect.height() / 2 - halfSize
x = 0 - halfSize
line2 = QLine(x, y, rect.width() - halfSize, y)
# Arrow
p = QPolygonF()
p.append(QPoint(0 - halfSize, 0))
p.append(QPoint(0, -self.size))
x = rect.width() - halfSize
p.append(QPoint(x, 0))
p.append(QPoint(0, 0))
offsetp = QPolygonF()
offsetp.append(QPoint(0 - halfSize, 0))
offsetp.append(QPoint(0, -self.size))
x = rect.width() - halfSize
offsetp.append(QPoint(x, 0))
offsetp.append(QPoint(0, 0))
waypoint = self.gps.waypoint
if waypoint:
az = self.map_pos.azimuth(waypoint)
painter.save()
painter.rotate(az)
self.pointbrush.setColor(Qt.red)
painter.setBrush(self.pointbrush)
path = QPainterPath()
path.addPolygon(offsetp)
painter.drawPath(path)
painter.restore()
painter.save()
painter.rotate(self._heading)
path = QPainterPath()
path.addPolygon(p)
painter.drawPath(path)
painter.restore()
painter.drawEllipse(rect)
painter.drawLine(line)
painter.drawLine(line2)