Function svg_grid

dask/array/svg.py:199–252

Create lines of SVG text that show a grid Parameters ---------- x: numpy.ndarray y: numpy.ndarray offset: tuple translational displacement of the grid in SVG coordinates skew: tuple

(x, y, offset=(0, 0), skew=(0, 0), size=200)

def svg_grid(x, y, offset=(0, 0), skew=(0, 0), size=200):
    """Create lines of SVG text that show a grid

    Parameters
    ----------
    x: numpy.ndarray
    y: numpy.ndarray
    offset: tuple
        translational displacement of the grid in SVG coordinates
    skew: tuple
    """
    # Horizontal lines
    x1 = np.zeros_like(y) + offset[0]
    y1 = y + offset[1]
    x2 = np.full_like(y, x[-1]) + offset[0]
    y2 = y + offset[1]

    if skew[0]:
        y2 += x.max() * skew[0]
    if skew[1]:
        x1 += skew[1] * y
        x2 += skew[1] * y

    min_x = min(x1.min(), x2.min())
    min_y = min(y1.min(), y2.min())
    max_x = max(x1.max(), x2.max())
    max_y = max(y1.max(), y2.max())
    max_n = size // 6

    h_lines = ["", "  <!-- Horizontal lines -->"] + svg_lines(x1, y1, x2, y2, max_n)

    # Vertical lines
    x1 = x + offset[0]
    y1 = np.zeros_like(x) + offset[1]
    x2 = x + offset[0]
    y2 = np.full_like(x, y[-1]) + offset[1]

    if skew[0]:
        y1 += skew[0] * x
        y2 += skew[0] * x
    if skew[1]:
        x2 += skew[1] * y.max()

    v_lines = ["", "  <!-- Vertical lines -->"] + svg_lines(x1, y1, x2, y2, max_n)

    color = "ECB172" if len(x) < max_n and len(y) < max_n else "8B4903"
    corners = f"{x1[0]},{y1[0]} {x1[-1]},{y1[-1]} {x2[-1]},{y2[-1]} {x2[0]},{y2[0]}"
    rect = [
        "",
        "  <!-- Colored Rectangle -->",
        f'  <polygon points="{corners}" style="fill:#{color}A0;stroke-width:0"/>',
    ]

    return h_lines + v_lines + rect, (min_x, max_x, min_y, max_y)


def svg_1d(chunks, sizes=None, **kwargs):