gistfile1.txt

outer := []triangolatte.Point{
    {0.0990196078431369, 0},
    {-9.802941176470586, 0},
    {-9.802941176470586, -9.901960784313724},
    {0.0990196078431369, -9.901960784313724},
}
hole := []triangolatte.Point{
    {-1.980392156862743, -3.762745098039215},
    {-1.980392156862743, -3.8617647058823525},
    {-1.8813725490196056, -3.96078431372549},
    {-1.8813725490196056, -4.059803921568627},
    {-1.8813725490196056, -4.158823529411764},
    {-1.8813725490196056, -4.257843137254902},
    {-1.7823529411764683, -4.356862745098039},
    {-1.7823529411764683, -4.455882352941176},
    {-1.7823529411764683, -4.5549019607843135},
    {-1.7823529411764683, -4.65392156862745},
    {-1.7823529411764683, -4.752941176470587},
    {-1.7823529411764683, -4.851960784313725},
    {-1.7823529411764683, -4.950980392156862},
    {-1.7823529411764683, -5.05},
    {-1.7823529411764683, -5.149019607843137},
    {-1.7823529411764683, -5.248039215686274},
    {-1.7823529411764683, -5.347058823529411},
    {-1.7823529411764683, -5.545098039215686},
    {-1.7823529411764683, -5.644117647058823},
    {-1.8813725490196056, -5.644117647058823},
    {-1.8813725490196056, -5.74313725490196},
    {-1.8813725490196056, -5.941176470588235},
    {-1.8813725490196056, -6.0401960784313715},
    {-1.980392156862743, -6.0401960784313715},
    {-1.980392156862743, -6.238235294117647},
    {-2.0794117647058803, -6.238235294117647},
    {-2.0794117647058803, -6.436274509803921},
    {-2.1784313725490176, -6.436274509803921},
    {-2.1784313725490176, -6.6343137254901965},
    {-2.277450980392155, -6.6343137254901965},
    {-2.3764705882352923, -6.733333333333333},
    {-2.3764705882352923, -6.931372549019608},
    {-2.4754901960784297, -6.931372549019608},
    {-2.4754901960784297, -7.030392156862746},
    {-2.574509803921567, -7.030392156862746},
    {-2.574509803921567, -7.129411764705883},
    {-2.6735294117647044, -7.129411764705883},
    {-2.6735294117647044, -7.22843137254902},
    {-2.7725490196078417, -7.22843137254902},
    {-2.7725490196078417, -7.3274509803921575},
    {-2.871568627450979, -7.3274509803921575},
    {-2.871568627450979, -7.426470588235295},
    {-3.0696078431372538, -7.426470588235295},
    {-3.168627450980391, -7.525490196078432},
    {-3.168627450980391, -7.624509803921569},
    {-3.366666666666666, -7.624509803921569},
    {-3.366666666666666, -7.723529411764707},
    {-3.5647058823529405, -7.723529411764707},
    {-3.5647058823529405, -7.822549019607845},
    {-3.762745098039215, -7.822549019607845},
    {-3.762745098039215, -7.921568627450982},
    {-3.8617647058823525, -7.921568627450982},
    {-4.059803921568627, -7.921568627450982},
    {-4.158823529411764, -7.921568627450982},
    {-4.158823529411764, -8.020588235294118},
    {-4.257843137254901, -8.020588235294118},
    {-4.455882352941176, -8.020588235294118},
    {-4.5549019607843135, -8.020588235294118},
    {-4.65392156862745, -8.020588235294118},
    {-4.752941176470587, -8.020588235294118},
    {-4.851960784313725, -8.020588235294118},
    {-4.950980392156862, -8.020588235294118},
    {-5.05, -8.020588235294118},
    {-5.149019607843137, -8.020588235294118},
    {-5.248039215686274, -8.020588235294118},
    {-5.347058823529411, -8.020588235294118},
    {-5.446078431372548, -8.020588235294118},
    {-5.545098039215686, -7.921568627450982},
    {-5.644117647058823, -7.921568627450982},
    {-5.74313725490196, -7.921568627450982},
    {-5.842156862745098, -7.921568627450982},
    {-5.941176470588235, -7.822549019607845},
    {-6.0401960784313715, -7.822549019607845},
    {-6.139215686274509, -7.723529411764707},
    {-6.238235294117647, -7.723529411764707},
    {-6.337254901960784, -7.624509803921569},
    {-6.436274509803921, -7.624509803921569},
    {-6.535294117647059, -7.525490196078432},
    {-6.6343137254901965, -7.426470588235295},
    {-6.733333333333333, -7.426470588235295},
    {-6.83235294117647, -7.3274509803921575},
    {-6.931372549019608, -7.22843137254902},
    {-7.129411764705883, -7.030392156862746},
    {-7.22843137254902, -6.931372549019608},
    {-7.3274509803921575, -6.83235294117647},
    {-7.3274509803921575, -6.733333333333333},
    {-7.426470588235295, -6.6343137254901965},
    {-7.525490196078432, -6.535294117647059},
    {-7.525490196078432, -6.436274509803921},
    {-7.624509803921569, -6.337254901960784},
    {-7.624509803921569, -6.238235294117647},
    {-7.723529411764707, -6.139215686274509},
    {-7.723529411764707, -6.0401960784313715},
    {-7.822549019607845, -5.941176470588235},
    {-7.822549019607845, -5.842156862745098},
    {-7.822549019607845, -5.74313725490196},
    {-7.822549019607845, -5.644117647058823},
    {-7.921568627450982, -5.545098039215686},
    {-7.921568627450982, -5.446078431372548},
    {-7.921568627450982, -5.347058823529411},
    {-7.921568627450982, -5.248039215686274},
    {-7.921568627450982, -5.149019607843137},
    {-7.921568627450982, -5.05},
    {-7.921568627450982, -4.950980392156862},
    {-7.921568627450982, -4.851960784313725},
    {-7.921568627450982, -4.752941176470587},
    {-7.921568627450982, -4.65392156862745},
    {-7.921568627450982, -4.5549019607843135},
    {-7.921568627450982, -4.356862745098039},
    {-7.921568627450982, -4.257843137254902},
    {-7.822549019607845, -4.257843137254902},
    {-7.822549019607845, -4.158823529411764},
    {-7.822549019607845, -3.96078431372549},
    {-7.822549019607845, -3.8617647058823525},
    {-7.723529411764707, -3.8617647058823525},
    {-7.723529411764707, -3.663725490196078},
    {-7.624509803921569, -3.663725490196078},
    {-7.624509803921569, -3.465686274509803},
    {-7.525490196078432, -3.465686274509803},
    {-7.525490196078432, -3.2676470588235285},
    {-7.426470588235295, -3.2676470588235285},
    {-7.3274509803921575, -3.168627450980391},
    {-7.3274509803921575, -2.9705882352941164},
    {-7.22843137254902, -2.9705882352941164},
    {-7.22843137254902, -2.871568627450979},
    {-7.129411764705883, -2.871568627450979},
    {-7.129411764705883, -2.7725490196078417},
    {-7.030392156862746, -2.7725490196078417},
    {-7.030392156862746, -2.6735294117647044},
    {-6.931372549019608, -2.6735294117647044},
    {-6.931372549019608, -2.574509803921567},
    {-6.83235294117647, -2.574509803921567},
    {-6.83235294117647, -2.4754901960784297},
    {-6.6343137254901965, -2.4754901960784297},
    {-6.535294117647059, -2.3764705882352923},
    {-6.535294117647059, -2.277450980392155},
    {-6.337254901960784, -2.277450980392155},
    {-6.337254901960784, -2.1784313725490176},
    {-6.139215686274509, -2.1784313725490176},
    {-6.139215686274509, -2.0794117647058803},
    {-5.941176470588235, -2.0794117647058803},
    {-5.941176470588235, -1.980392156862743},
    {-5.842156862745098, -1.980392156862743},
    {-5.644117647058823, -1.980392156862743},
    {-5.545098039215686, -1.980392156862743},
    {-5.545098039215686, -1.8813725490196056},
    {-5.446078431372548, -1.8813725490196056},
    {-5.248039215686274, -1.8813725490196056},
    {-5.149019607843137, -1.8813725490196056},
    {-5.05, -1.8813725490196056},
    {-4.950980392156862, -1.8813725490196056},
    {-4.851960784313725, -1.8813725490196056},
    {-4.752941176470587, -1.8813725490196056},
    {-4.65392156862745, -1.8813725490196056},
    {-4.5549019607843135, -1.8813725490196056},
    {-4.455882352941176, -1.8813725490196056},
    {-4.356862745098039, -1.8813725490196056},
    {-4.257843137254901, -1.8813725490196056},
    {-4.158823529411764, -1.980392156862743},
    {-4.059803921568627, -1.980392156862743},
    {-3.9607843137254894, -1.980392156862743},
    {-3.8617647058823525, -1.980392156862743},
    {-3.762745098039215, -2.0794117647058803},
    {-3.663725490196078, -2.0794117647058803},
    {-3.5647058823529405, -2.1784313725490176},
    {-3.465686274509803, -2.1784313725490176},
    {-3.366666666666666, -2.277450980392155},
    {-3.2676470588235285, -2.277450980392155},
    {-3.168627450980391, -2.3764705882352923},
    {-3.0696078431372538, -2.4754901960784297},
    {-2.9705882352941164, -2.4754901960784297},
    {-2.871568627450979, -2.574509803921567},
    {-2.7725490196078417, -2.6735294117647044},
    {-2.574509803921567, -2.871568627450979},
    {-2.4754901960784297, -2.9705882352941164},
    {-2.3764705882352923, -3.0696078431372538},
    {-2.3764705882352923, -3.168627450980391},
    {-2.277450980392155, -3.2676470588235285},
    {-2.1784313725490176, -3.366666666666666},
    {-2.1784313725490176, -3.465686274509803},
    {-2.0794117647058803, -3.5647058823529405},
    {-2.0794117647058803, -3.663725490196078},
}

poly, err := triangolatte.JoinHoles([][]triangolatte.Point{outer, hole})
if err != nil {
    panic(fmt.Sprintf("JoinHoles failed: %s", err))
}

fmt.Println("Poly is", poly)
_, err = triangolatte.Polygon(poly)
if err != nil {
    panic(fmt.Sprintf("Polygon failed: %s", err))
}