Ejemplo n.º 1
0
def tangent2(layer, data, index, layer2, i):
    fcount = featureCount(layer)
    if fcount > 0:
        fant = [f for f in layer.getFeatures()][fcount - 1]
        length = fant.geometry().length()
        lpt = qgsGeometryToPolyline(fant.geometry())[-1]
        angle = 90 - lastAzimuth(fant.geometry())
        lpt = p2QgsPoint(lpt.x() - length * np.cos(np.deg2rad(angle)),
                         lpt.y() - length * np.sin(np.deg2rad(angle)))

        l1 = QgsGeometry.fromPolyline([
            p2QgsPoint(lpt),
            p2QgsPoint(qgsGeometryToPolyline(fant.geometry())[-1])
        ])
        l2 = QgsGeometry(l1)
        dd = diff(
            qgsGeometryToPolyline(fant.geometry())[-1],
            qgsGeometryToPolyline(fant.geometry())[0])
        l2.translate(dd.x(), dd.y())
        PI = qgsGeometryToPolyline(fant.geometry())[-1]
        d = 0
        data["Disable"].append("C")

    else:
        l1, l2 = getTangentesGeometry(layer2, i)
        d = deflection(layer2, i)
        PI = qgsGeometryToPolyline(l1)[-1]
        if l1 is None:
            l1 = QgsGeometry(l2)
            dd = diff(
                qgsGeometryToPolyline(l2)[0],
                qgsGeometryToPolyline(l2)[-1])
            l2.translate(dd.x(), dd.y())
        elif l2 is None:
            l2 = QgsGeometry(l1)
            dd = diff(
                qgsGeometryToPolyline(l1)[-1],
                qgsGeometryToPolyline(l2)[0])
            l2.translate(dd.x(), dd.y())

    startAngle = azi(qgsGeometryToPolyline(l1))
    angle = 90 - (data["D"] + startAngle)
    angle = angle if angle > 0 else 360 + angle
    angle = angle if angle < 360 else angle - 360
    p1 = p2QgsPoint(PI)
    p2 = p2QgsPoint(data["L"] * np.cos(np.deg2rad(angle)) + p1.x(),
                    data["L"] * np.sin(np.deg2rad(angle)) + p1.y())
    line = QgsGeometry.fromPolyline([p1, p2])

    if data["T"] > l1.length():
        data["T"] = l1.length

    if index == "R":
        pass

    elif index == "L":
        if data["C"]:
            Lmax = np.sqrt(l1.length()**2 + l2.length()**2 - 2 * l1.length() *
                           l2.length() * np.cos(np.deg2rad(360 - d)))
            if data["L"] > Lmax:
                data["L"] = Lmax
            data["T"] = abs(data["L"] / (2 * np.tan(np.deg2rad((d) / 2))))
            data["D"] = d - 90
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
        else:
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            dd = diff(p1, PI)
            line.translate(dd.x(), dd.y())
            p2 = qgsGeometryToPolyline(line)[-1]

    elif index == "T":
        if data["C"]:
            data["L"] = abs(data["T"] * 2 * np.tan(np.deg2rad((d) / 2)))
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
        else:
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            dd = diff(p1, PI)
            line.translate(dd.x(), dd.y())
            p2 = qgsGeometryToPolyline(line)[-1]

    elif index == "D":
        if data["C"]:
            data["D"] = 0
            data["T"] = 0
            data["C"] = False
            p2 = qgsGeometryToPolyline(line)[-1]
        else:
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            dd = diff(p1, PI)
            line.translate(dd.x(), dd.y())
            p2 = qgsGeometryToPolyline(line)[-1]

    elif index == "C":
        if data["C"]:
            Lmax = np.sqrt(l1.length()**2 + l2.length()**2 - 2 * l1.length() *
                           l2.length() * np.cos(np.deg2rad(360 - d)))
            if data["L"] > Lmax:
                data["L"] = Lmax
            data["T"] = abs(data["L"] / (2 * np.tan(np.deg2rad((d) / 2))))
            data["D"] = d - 90
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
        else:
            data["D"] = d
            if data["L"] < data["T"]:
                data["L"] = data["T"]
            data["T"] = 0
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            p2 = p2QgsPoint(l2.interpolate(data["L"] - data["T"]).asPoint())

    elif index == "S":
        data["D"] = 0
        data["T"] = 0
        p2 = qgsGeometryToPolyline(line)[-1]

    feat = QgsFeature(layer.fields())
    feat.setAttribute('Tipo', 'T')
    feat.setGeometry(QgsGeometry.fromPolyline([p2QgsPoint(p1),
                                               p2QgsPoint(p2)]))
    layer.dataProvider().addFeatures([feat])

    data["Disable"].append("R")
    data["Disable"].append("C")

    return data
Ejemplo n.º 2
0
def circleArc(layer, data, index, layer2, i, ic):
    fcount = featureCount(layer)
    if fcount > 0:
        l1, l2 = getTangentesGeometry(layer2, ic, i)
        d = deflection(layer2, i)
        PI = qgsGeometryToPolyline(l1)[-1]
    else:
        l1, l2 = getTangentesGeometry(layer2, ic, i)
        d = deflection(layer2, i)
        PI = qgsGeometryToPolyline(l1)[-1]
        if l1 is None:
            l1 = QgsGeometry(l2)
            dd = diff(
                qgsGeometryToPolyline(l2)[0],
                qgsGeometryToPolyline(l2)[-1])
            l2.translate(dd.x(), dd.y())
        elif l2 is None:
            l2 = QgsGeometry(l1)
            dd = diff(
                qgsGeometryToPolyline(l1)[-1],
                qgsGeometryToPolyline(l2)[0])
            l2.translate(dd.x(), dd.y())

    pl = qgsGeometryToPolyline(l1)
    startAngle = azi(pl)
    angle = 90 - (data["D"] + startAngle)
    angle = angle if angle > 0 else 360 + angle
    angle = angle if angle < 360 else angle - 360
    angleInternal = 180 - d
    p1 = p2QgsPoint(PI)
    corda = 2 * data["R"] * np.sin(np.deg2rad(angleInternal / 2))
    p2 = p2QgsPoint(corda * np.cos(np.deg2rad(angle)) + p1.x(),
                    corda * np.sin(np.deg2rad(angle)) + p1.y())

    T = None
    E = None
    p = None
    arc = None

    if index == "R":
        if data["C"]:
            data["L"] = np.deg2rad(abs(d)) * data["R"] * abs(data["D"] / d)
            corda = 2 * data["R"] * np.sin(np.deg2rad(abs(data["D"]) / 2))
            data["T"] = abs(corda /
                            (2 * np.tan(np.deg2rad((abs(data["D"])) / 2))))
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
            PI = p2QgsPoint(PI)
        else:
            data["L"] = np.deg2rad(abs(data["D"])) * data["R"]
            corda = 2 * data["R"] * np.sin(np.deg2rad(abs(data["D"]) / 2))
            T = abs(corda / (2 * np.tan(np.deg2rad((abs(data["D"])) / 2))))
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            l2 = QgsGeometry(l1)
            dd = diff(p1, qgsGeometryToPolyline(l2)[0])
            l2.translate(dd.x(), dd.y())
            dd = diff(
                l2.interpolate(T).asPoint(),
                qgsGeometryToPolyline(l2)[0])
            l2.translate(dd.x(), dd.y())
            l2.rotate(data["D"], QgsPointXY(qgsGeometryToPolyline(l2)[0]))
            l2.extendLine(0, 500000)
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
            PI = p2QgsPoint(qgsGeometryToPolyline(l2)[0])

    elif index == "L":
        if data["C"]:
            if data["L"] > np.deg2rad(abs(d)) * data["R"] * abs(data["D"] / d):
                data["D"] = d / abs(d) * abs(
                    abs(d) * data["L"] / (np.deg2rad(abs(d)) * data["R"]))
            if data["L"] > np.deg2rad(abs(d)) * data["R"]:
                data["R"] = data["L"] / (np.deg2rad(abs(d)))
                corda = 2 * data["R"] * np.sin(np.deg2rad(abs(d) / 2))
                data["T"] = abs(corda / (2 * np.tan(np.deg2rad((abs(d)) / 2))))
                p1 = p2QgsPoint(
                    l1.interpolate(l1.length() - data["T"]).asPoint())
                p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
                PI = p2QgsPoint(PI)
        else:
            data["R"] = data["L"] / (np.deg2rad(abs(data["D"])))
            corda = 2 * data["R"] * np.sin(np.deg2rad(abs(data["D"]) / 2))
            T = abs(corda / (2 * np.tan(np.deg2rad(abs(data["D"]) / 2))))
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            l2 = QgsGeometry(l1)
            dd = diff(p1, qgsGeometryToPolyline(l2)[0])
            l2.translate(dd.x(), dd.y())
            dd = diff(
                l2.interpolate(T).asPoint(),
                qgsGeometryToPolyline(l2)[0])
            l2.translate(dd.x(), dd.y())
            l2.rotate(data["D"], QgsPointXY(qgsGeometryToPolyline(l2)[0]))
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
            PI = p2QgsPoint(qgsGeometryToPolyline(l2)[0])

    elif index == "T":
        if data["C"]:
            corda = data["T"] * abs(2 * np.tan(np.deg2rad((d) / 2)))
            data["L"] = np.deg2rad(abs(d)) * data["R"] * abs(data["D"] / d)
            data["R"] = corda / (2 * np.sin(np.deg2rad(angleInternal / 2)))
            data["L"] = np.deg2rad(abs(d)) * data["R"] * abs(data["D"] / d)
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
            PI = p2QgsPoint(PI)
            T = data["T"]
        else:
            corda = 2 * data["R"] * np.sin(np.deg2rad(abs(data["D"]) / 2))
            T = abs(corda / (2 * np.tan(np.deg2rad((abs(data["D"])) / 2))))
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            l2 = QgsGeometry(l1)
            dd = diff(p1, qgsGeometryToPolyline(l2)[0])
            l2.translate(dd.x(), dd.y())
            dd = diff(
                l2.interpolate(T).asPoint(),
                qgsGeometryToPolyline(l2)[0])
            l2.translate(dd.x(), dd.y())
            l2.rotate(data["D"], QgsPointXY(qgsGeometryToPolyline(l2)[0]))
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
            PI = p2QgsPoint(qgsGeometryToPolyline(l2)[0])

    elif index == "D":
        if data["C"]:
            T = data["T"]
            data["L"] = np.deg2rad(abs(d)) * data["R"] * abs(data["D"] / d)
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
            PI = p2QgsPoint(PI)
            E = abs(T * np.tan(np.deg2rad(d / 4)))
            l2 = QgsGeometry(l1)
            dd = diff(PI, qgsGeometryToPolyline(l2)[0])
            l2.translate(dd.x(), dd.y())
            l2.rotate(
                abs((abs(d) - 180) / d * data["D"] + 180 - abs(d)) * d / abs(d)
                + d,
                qgsGeometryToPolyline(l2)[0])
            p = p2QgsPoint((p1.x() + p2.x()) / 2, (p2.y() + p1.y()) / 2)
            tmp_line = QgsGeometry.fromPolyline([p2QgsPoint(PI), p])
            p = p2QgsPoint(tmp_line.interpolate(E).asPoint())
            arc = QgsCircularString()
            arc.setPoints([p1, p, p2])
            l3 = QgsGeometry(l2)
            dd = diff(
                qgsGeometryToPolyline(l3)[-1],
                qgsGeometryToPolyline(l3)[0])
            l3.translate(dd.x(), dd.y())
            l3.rotate(-90 * d / abs(d), qgsGeometryToPolyline(l3)[0])
            l2 = unifyGeometry(l2, l3)
            arc = QgsCircularString()
            arc.setPoints([p1, p, p2])
            arc = splitGeometry(l2, createGeometry(arc))

        else:
            data["L"] = np.deg2rad(abs(data["D"])) * data["R"]
            corda = 2 * data["R"] * np.sin(np.deg2rad(abs(data["D"]) / 2))
            T = abs(corda / (2 * np.tan(np.deg2rad((abs(data["D"])) / 2))))
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            l2 = QgsGeometry(l1)
            dd = diff(p1, qgsGeometryToPolyline(l2)[0])
            l2.translate(dd.x(), dd.y())
            PI = p2QgsPoint(l2.interpolate(T).asPoint())
            dd = diff(PI, qgsGeometryToPolyline(l2)[0])
            l2.translate(dd.x(), dd.y())
            l2.rotate(data["D"], qgsGeometryToPolyline(l2)[0])
            p2 = p2QgsPoint(l2.interpolate(T).asPoint())

    elif index == "C":
        if data["C"]:
            data["D"] = d
            data["L"] = np.deg2rad(abs(data["D"])) * data["R"]
            corda = 2 * data["R"] * np.sin(np.deg2rad(abs(data["D"]) / 2))
            data["T"] = abs(corda / (2 * np.tan(np.deg2rad((d) / 2))))
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
            PI = p2QgsPoint(PI)
        else:
            p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
            p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
            PI = p2QgsPoint(PI)

    elif index == "S":
        data["C"] = True
        # data["D"]=d
        data["L"] = np.deg2rad(abs(data["D"])) * data["R"]
        corda = 2 * data["R"] * np.sin(np.deg2rad(abs(data["D"]) / 2))
        #data["T"]=abs(corda/(2*np.tan(np.deg2rad((d)/2))))
        p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
        p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
        PI = p2QgsPoint(PI)

    if (data["T"] > l1.length() or data["T"] > l2.length()) and data["C"]:
        data["L"] = np.deg2rad(abs(d)) * data["R"] * abs(data["D"] / d)
        corda = 2 * data["R"] * np.sin(np.deg2rad(abs(data["D"]) / 2))
        data["T"] = abs(corda / (2 * np.tan(np.deg2rad((d) / 2))))
        p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
        p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
        PI = p2QgsPoint(PI)

    T = data["T"] if T is None else T
    E = abs(T * np.tan(np.deg2rad(data["D"] / 4))) if E is None else E

    p = p2QgsPoint((p1.x() + p2.x()) / 2, (p2.y() + p1.y()) / 2)
    #msgLog("p: " + str(p.x()) +"," +str(p.y()))
    #msgLog("PI: " + str(PI.x()) +"," +str(PI.y()))
    tmp_line = QgsGeometry.fromPolyline([p2QgsPoint(PI), p])
    p = p2QgsPoint(tmp_line.interpolate(E).asPoint())

    feat = QgsFeature(layerFields())
    feat.setAttributes(['C', "", data["R"], data["D"], data["T"], data["L"]])
    # Create a QgsCircularStringV2
    circularRing = QgsCircularString()
    # Set first point, intermediate point for curvature and end point
    circularRing.setPoints([p1, p, p2])
    #    data["R"]=QgsGeometryUtils.circleCenterRadius(p1,p,p2)[0]
    circularRing = arc if arc else circularRing
    feat.setGeometry(circularRing)
    f2 = QgsFeature(layer.fields())
    f2.setGeometry(l2)
    layer.dataProvider().addFeatures([feat])

    return data
Ejemplo n.º 3
0
def circleArc2(layer, data, index, layer2, i):
    fcount = featureCount(layer)
    if fcount > 0:
        fant = [f for f in layer.getFeatures()][fcount - 1]
        l1 = fant.geometry()
        l2 = QgsGeometry(l1)
        dd = diff(
            qgsGeometryToPolyline(fant.geometry())[-1],
            qgsGeometryToPolyline(fant.geometry())[0])
        l2.translate(dd.x(), dd.y())
        PI = qgsGeometryToPolyline(fant.geometry())[-1]
        d = float(data["D"]) if not index == "S" else 90.0
        l2.rotate(d, QgsPointXY(PI))

    else:
        data["Disable"].append("C")
        data["Disable"].append("D")
        data["Disable"].append("R")
        data["Disable"].append("L")
        data["Disable"].append("T")
        return data

    data["Disable"].append("C")
    startAngle = azi(qgsGeometryToPolyline(l1))
    angle = 90 - (data["D"] + startAngle)
    angle = angle if angle > 0 else 360 + angle
    angle = angle if angle < 360 else angle - 360
    angleInternal = 180 - abs(d)
    p1 = p2QgsPoint(PI)
    corda = 2 * data["R"] * np.sin(np.deg2rad(angleInternal / 2))
    p2 = p2QgsPoint(corda * np.cos(np.deg2rad(angle)) + p1.x(),
                    corda * np.sin(np.deg2rad(angle)) + p1.y())

    T = None
    E = None
    p = None
    arc = None

    if index == "R":
        pass
    elif index == "L":
        data["R"] = data["L"] / (np.deg2rad(abs(data["D"])))
        corda = 2 * data["R"] * np.sin(np.deg2rad(abs(data["D"]) / 2))
        T = abs(corda / (2 * np.tan(np.deg2rad(abs(data["D"]) / 2))))
        p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
        l2 = QgsGeometry(l1)
        dd = diff(p1, qgsGeometryToPolyline(l2)[0])
        l2.translate(dd.x(), dd.y())
        dd = diff(l2.interpolate(T).asPoint(), qgsGeometryToPolyline(l2)[0])
        l2.translate(dd.x(), dd.y())
        l2.rotate(data["D"], QgsPointXY(qgsGeometryToPolyline(l2)[0]))
        p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
        p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
        PI = p2QgsPoint(qgsGeometryToPolyline(l2)[0])

    elif index == "T":
        corda = 2 * data["R"] * np.sin(np.deg2rad(abs(data["D"]) / 2))
        T = abs(corda / (2 * np.tan(np.deg2rad((abs(data["D"])) / 2))))
        p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
        l2 = QgsGeometry(l1)
        dd = diff(p1, qgsGeometryToPolyline(l2)[0])
        l2.translate(dd.x(), dd.y())
        dd = diff(l2.interpolate(T).asPoint(), qgsGeometryToPolyline(l2)[0])
        l2.translate(dd.x(), dd.y())
        l2.rotate(data["D"], QgsPointXY(qgsGeometryToPolyline(l2)[0]))
        p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
        p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
        PI = p2QgsPoint(qgsGeometryToPolyline(l2)[0])

    elif index == "D":
        data["L"] = np.deg2rad(abs(data["D"])) * data["R"]
        corda = 2 * data["R"] * np.sin(np.deg2rad(abs(data["D"]) / 2))
        T = abs(corda / (2 * np.tan(np.deg2rad((abs(data["D"])) / 2))))
        p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
        l2 = QgsGeometry(l1)
        dd = diff(p1, qgsGeometryToPolyline(l2)[0])
        l2.translate(dd.x(), dd.y())
        PI = p2QgsPoint(l2.interpolate(T).asPoint())
        dd = diff(PI, qgsGeometryToPolyline(l2)[0])
        l2.translate(dd.x(), dd.y())
        l2.rotate(data["D"], qgsGeometryToPolyline(l2)[0])
        p2 = p2QgsPoint(l2.interpolate(T).asPoint())

    elif index == "C":
        pass
    elif index == "S":
        data["C"] = True
        data["D"] = 90
        data["L"] = np.deg2rad(abs(data["D"])) * data["R"]
        data["T"] = 0

    if (data["T"] > l1.length() or data["T"] > l2.length()) and data["C"]:
        data["L"] = np.deg2rad(abs(d)) * data["R"] * abs(data["D"] / d)
        corda = 2 * data["R"] * np.sin(np.deg2rad(abs(data["D"]) / 2))
        data["T"] = abs(corda / (2 * np.tan(np.deg2rad((d) / 2))))
        p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
        PI = p2QgsPoint(PI)
        corda = 2 * data["R"] * np.sin(np.deg2rad(angleInternal / 2))
        p2 = p2QgsPoint(corda * np.cos(np.deg2rad(angle)) + p1.x(),
                        corda * np.sin(np.deg2rad(angle)) + p1.y())

    T = float(data["T"]) if T is None else T
    E = abs(T * np.tan(np.deg2rad(data["D"] / 4))) if E is None else E

    p = p2QgsPoint((p1.x() + p2.x()) / 2, (p2.y() + p1.y()) / 2)
    tmp_line = QgsGeometry.fromPolyline([p2QgsPoint(PI), p])
    p = p2QgsPoint(tmp_line.interpolate(E).asPoint())

    feat = QgsFeature(layer.fields())
    feat.setAttribute('Tipo', 'C')
    # Create a QgsCircularStringV2
    circularRing = QgsCircularString()
    # Set first point, intermediate point for curvature and end point
    circularRing.setPoints([p1, p, p2])
    #    data["R"]=QgsGeometryUtils.circleCenterRadius(p1,p,p2)[0]
    circularRing = arc if arc else circularRing
    feat.setGeometry(circularRing)
    f2 = QgsFeature(layer.fields())
    f2.setGeometry(l2)
    layer.dataProvider().addFeatures([feat])

    data["Disable"].append("C")
    return data
Ejemplo n.º 4
0
def polyTransCircle(layer, data, index, layer2, i, ic):

    LsMax = data["R"] * abs(data["D"]) * np.pi / 180
    LsMin = 0

    fcount = featureCount(layer)
    if fcount > 0:
        l1, l2 = getTangentesGeometry(layer2, ic, i)
        d = deflection(layer2, i)
        PI = qgsGeometryToPolyline(l1)[-1]
        data["Disable"].append("C")

    else:
        l1, l2 = getTangentesGeometry(layer2, ic, i)
        d = deflection(layer2, i)
        PI = qgsGeometryToPolyline(l1)[-1]
        if l1 is None:
            l1 = QgsGeometry(l2)
            dd = diff(
                qgsGeometryToPolyline(l2)[0],
                qgsGeometryToPolyline(l2)[-1])
            l2.translate(dd.x(), dd.y())
        elif l2 is None:
            l2 = QgsGeometry(l1)
            dd = diff(
                qgsGeometryToPolyline(l1)[-1],
                qgsGeometryToPolyline(l2)[0])
            l2.translate(dd.x(), dd.y())

    startAngle = azi(qgsGeometryToPolyline(l1))
    angle = 90 - (data["D"] + startAngle)
    angle = angle if angle > 0 else 360 + angle
    angle = angle if angle < 360 else angle - 360
    p1 = p2QgsPoint(PI)
    p2 = p2QgsPoint(data["L"] * np.cos(np.deg2rad(angle)) + p1.x(),
                    data["L"] * np.sin(np.deg2rad(angle)) + p1.y())
    line = QgsGeometry.fromPolyline([p1, p2])

    a1 = azi(polyline(l1))
    a2 = azi(polyline(l2))
    msgLog("a1: " + str(a1) + "   " + "a2: " + str(a2))

    data["C"] = True
    corda = 2 * data["R"] * np.sin(np.deg2rad(abs(data["D"]) / 2))

    p1 = p2QgsPoint(l1.interpolate(l1.length() - data["T"]).asPoint())
    p2 = p2QgsPoint(l2.interpolate(data["T"]).asPoint())
    PI = p2QgsPoint(PI)

    p1 = p2QgsPoint(p1)
    p2 = p2QgsPoint(p2)

    feat1 = QgsFeature(layerFields())
    feat2 = QgsFeature(layerFields())
    feat3 = QgsFeature(layerFields())
    feat1.setAttributes(['E', "", data["R"], data["D"], data["T"], data["L"]])
    feat2.setAttributes(['C', "", data["R"], data["D"], data["T"], data["L"]])
    feat3.setAttributes(['E', "", data["R"], data["D"], data["T"], data["L"]])

    #  if ((a2 - a1 >= 0 and (a1 <= 90 or a1 >= 270)) or (a2 - a1 <= 0 and (a1 >= 90 or a1 <= 270))) and not (
    #         (abs(a1 - a2) > 180 or (a1 < 90 and a2 > 90) or (a1 < 90, a2 < 90)) and not (a2 - a1) < 0):

    pointsT1 = [
        p2QgsPoint(
            clotX(L**2 / (2 * data["R"] * data["L"])) * L,
            clotY(L**2 / (2 * data["R"] * data["L"])) * L)
        for L in xrange(data["L"])
    ]
    pointsT2 = list(
        reversed([
            p2QgsPoint(
                clotX(L**2 / (2 * data["R"] * data["L"])) * L,
                1000 - clotY(L**2 / (2 * data["R"] * data["L"])) * L)
            for L in xrange(data["L"])
        ]))

    IpointsT1 = [
        p2QgsPoint(
            clotX(L**2 / (2 * data["R"] * data["L"])) * L,
            1000 - clotY(L**2 / (2 * data["R"] * data["L"])) * L)
        for L in xrange(data["L"])
    ]
    IpointsT2 = list(
        reversed([
            p2QgsPoint(
                clotX(L**2 / (2 * data["R"] * data["L"])) * L,
                clotY(L**2 / (2 * data["R"] * data["L"])) * L)
            for L in xrange(data["L"])
        ]))

    g1 = QgsGeometry.fromPolyline(pointsT1)
    dd = diff(p1, pointsT1[0])
    g1.translate(dd.x(), dd.y())
    g1.rotate(polyline(l1)[0].azimuth(polyline(l1)[-1]) - 90, polyline(g1)[0])
    g2 = QgsGeometry.fromPolyline(pointsT2)
    dd = diff(p2, pointsT2[-1])
    g2.translate(dd.x(), dd.y())
    g2.rotate(polyline(l2)[0].azimuth(polyline(l2)[-1]) + 90, polyline(g2)[-1])

    Ig1 = QgsGeometry.fromPolyline(IpointsT1)
    dd = diff(p1, IpointsT1[0])
    Ig1.translate(dd.x(), dd.y())
    Ig1.rotate(
        polyline(l1)[0].azimuth(polyline(l1)[-1]) - 90,
        polyline(Ig1)[0])
    Ig2 = QgsGeometry.fromPolyline(IpointsT2)
    dd = diff(p2, IpointsT2[-1])
    Ig2.translate(dd.x(), dd.y())
    Ig2.rotate(
        polyline(l2)[0].azimuth(polyline(l2)[-1]) + 90,
        polyline(Ig2)[-1])

    g1, g2 = [g1, g2] if polyline(g1)[-1].distance(polyline(g2)[0]) \
                         <= polyline(Ig1)[-1].distance(polyline(Ig2)[0]) else [Ig1, Ig2]

    feat1.setGeometry(g1)
    feat3.setGeometry(g2)

    p = p2QgsPoint((p1.x() + p2.x()) / 2, (p2.y() + p1.y()) / 2)
    p1 = p2QgsPoint(polyline(g1)[-1])
    p2 = p2QgsPoint(polyline(g2)[0])
    tmp_line = QgsGeometry.fromPolyline([p2QgsPoint(PI), p])
    theta = data["L"] / (2 * data["R"])
    ys = clotY(theta) * data["L"]
    p = ys - data["R"] * (1 - np.cos(theta))
    E = abs((data["R"] + p) /
            np.cos(np.deg2rad((data["D"] + 2 * np.rad2deg(theta)) / 2)) -
            data["R"])
    msgLog("E=" + str(E))
    p = p2QgsPoint(tmp_line.interpolate(E).asPoint())
    circularRing = QgsCircularString()
    circularRing.setPoints([p1, p, p2])
    feat2.setGeometry(circularRing)
    layer.dataProvider().addFeatures([feat1, feat2, feat3])

    return data