{
    "nodes": [
        {
            "datums": [
                {
                    "expr": "0.0",
                    "name": "x",
                    "type": "float",
                    "uid": 0
                },
                {
                    "expr": "0.0",
                    "name": "y",
                    "type": "float",
                    "uid": 1
                },
                {
                    "expr": "2",
                    "name": "width",
                    "type": "float",
                    "uid": 2
                },
                {
                    "expr": "2",
                    "name": "height",
                    "type": "float",
                    "uid": 3
                },
                {
                    "expr": "0.25",
                    "name": "r",
                    "type": "float",
                    "uid": 4
                },
                {
                    "expr": "\u0012fab.types.Shape('iiiiiaa-f-1X-Xf1a-f-0.75Y-Yf0.75aa-f-0.75X-Xf0.75a-f-1Y-Yf1-r+q-Xf-0.75q-Yf-0.75f0.25-r+q-Xf-0.75q-Yf0.75f0.25-r+q-Xf0.75q-Yf-0.75f0.25-r+q-Xf0.75q-Yf0.75f0.25',float('-1.000000'),float('-1.000000'),float('-inf'),float('1.000000'),float('1.000000'),float('inf'))",
                    "name": "shape",
                    "type": "_fabtypes.Shape",
                    "uid": 5
                }
            ],
            "inspector": [
                -251,
                -331
            ],
            "name": "r0",
            "script": [
                "# Neil Gershenfeld 1/24/15",
                "# Matt Keeter 6/11/15",
                "",
                "import fab",
                "",
                "title('Rounded rectangle (center)')",
                "",
                "input('x', float)",
                "input('y', float)",
                "input('width', float)",
                "input('height', float)",
                "input('r', float)",
                "",
                "xmin, xmax = x - width/2, x + width/2",
                "ymin, ymax = y - height/2, y + height/2",
                "",
                "# This is the circle's radius in actual units (not a 0-1 fraction)",
                "r_ = r * min(width, height)/2",
                "",
                "output('shape', fab.shapes.rounded_rectangle(xmin, xmax, ymin, ymax, r))",
                "",
                "def drag_r(this, x, y, z):",
                "    if abs(this.width) < abs(this.height):",
                "        d = abs(this.width)",
                "        mid = this.y + this.height/2 - d/2",
                "    else:",
                "        d = abs(this.width)",
                "        mid = this.y",
                "    r = 1 - (y - mid) / (d/2)",
                "    this.r = float(min(1, max(0, r)))",
                "",
                "def drag_hw(this, x, y, z):",
                "   this.height = abs(2 * (y - this.y))",
                "   this.width = abs(2 * (x - this.x))",
                "",
                "# UI",
                "sb.ui.wireframe(",
                "        [(xmin, ymin, 0), (xmax, ymin, 0), (xmax, ymax, 0), (xmin, ymax, 0)],",
                "        close=True)",
                "sb.ui.wireframe([(xmax - r_, ymax, 0), (xmax, ymax - r_, 0)])",
                "sb.ui.point(x, y)",
                "sb.ui.point(xmax, ymax, drag=drag_hw, relative=False)",
                "sb.ui.point(xmax, ymax - r_, drag=drag_r, relative=False)",
                "",
                ""
            ],
            "uid": 0
        },
        {
            "datums": [
                {
                    "expr": "r0.4",
                    "name": "x0",
                    "type": "float",
                    "uid": 0
                },
                {
                    "expr": "0",
                    "name": "y0",
                    "type": "float",
                    "uid": 1
                },
                {
                    "expr": "2",
                    "name": "width",
                    "type": "float",
                    "uid": 2
                },
                {
                    "expr": "1",
                    "name": "height",
                    "type": "float",
                    "uid": 3
                },
                {
                    "expr": "\u0012fab.types.Shape('aa-f-1X-Xf1a-f-0.5Y-Yf0.5',float('-1.000000'),float('-0.500000'),float('-inf'),float('1.000000'),float('0.500000'),float('inf'))",
                    "name": "shape",
                    "type": "_fabtypes.Shape",
                    "uid": 4
                }
            ],
            "inspector": [
                -239,
                -80
            ],
            "name": "r1",
            "script": [
                "# Neil Gershenfeld 1/24/15",
                "# Matt Keeter 6/11/15",
                "",
                "import fab",
                "",
                "title('Rectangle (center)')",
                "",
                "input('x0', float)",
                "input('y0', float)",
                "input('width', float)",
                "input('height', float)",
                "",
                "xmin, xmax = x0 - width/2, x0 + width/2",
                "ymin, ymax = y0 - height/2, y0 + height/2",
                "",
                "output('shape', fab.shapes.rectangle(xmin, xmax, ymin, ymax))",
                "",
                "def drag_hw(this, x, y, z):",
                "   this.width = abs(2 * (x - this.x0))",
                "   this.height = abs(2 * (y - this.y0))",
                "",
                "# UI",
                "sb.ui.wireframe(",
                "        [(xmin, ymin, 0), (xmax, ymin, 0), (xmax, ymax, 0), (xmin, ymax, 0)],",
                "        close=True)",
                "sb.ui.point(x0, y0)",
                "sb.ui.point(xmax, ymax, drag=drag_hw, relative=False)",
                ""
            ],
            "uid": 1
        }
    ],
    "protocol": 6,
    "type": "sb"
}