POC: Code PyGMT logo in PyGMT

examples/gallery/embellishments/pygmt_logo.py

@@ -0,0 +1,256 @@
+"""
+PyGMT logo
+==========
+The PyGMT logo coded in Python using PyGMT. The design of the logo is kindly provided
+by `@sfrooti <https://github.com/sfrooti>`_. The logo consists of a visual and the
+wordmark "PyGMT". There are different versions available:
+
+- ``color_concept``: colors of the visual and workmark.
+  Select between ``"colors"`` (colors for Python (blue and yellow) and GMT (red)) and
+  ``"bw"`` for black and white.
+  [Default is ``"color"``].
+- ``bg_concept``: color of the background.
+  Select between ``"light"`` (white) and ``"dark"`` (darkgray / gray20).
+  [Default is ``"dark"``].
+- ``shape``: shape of the visual.
+  Select between ``"circle"`` and ``"hexagon"``.
+  [Default is ``"circle"``].
+- ``angle_rot``: rotation angle of the visual.
+  Give an angle in degrees (mesuared contour-clockwise from the vertical).
+  [Default is ``30``]. Should this be flexible ???
+- ``wordmark``: add the wordmark "PyGMT".
+  ``True`` or ``False``.
+  [Default is ``True``]. ???
+- ``orientation``: orientation of the wordmark.
+  Select between ``"vertical"`` (at the bottom) and ``"horizontal"`` (at the right).
+  [Default is ``"vertical"``].
+"""
+
+# %%
+from pathlib import Path
+
+import pygmt
+
+# -----------------------------------------------------------------------------
+# Changebale settings  (-> adjust for your needs; later input for function)
+# -----------------------------------------------------------------------------
+color_concept = "color"  # "color" | "bw"
+bg_concept = "dark"  # "light" | "dark"
+shape = "circle"  # "circle" | "hexagon"
+angle_rot = 30  # degrees
+wordmark = True  # True | False
+orientation = "horizontal"  # "horizontal" | "vertical"
+dpi_png = 720  # resolution of saved PNG image
+
+
+# -----------------------------------------------------------------------------
+# Define colors (-> can be discussed)
+# -----------------------------------------------------------------------------
+if color_concept == "color":
+    color_blue = "48/105/152"  # Python blue
+    color_yellow = "255/212/59"  # Python yellow
+    color_red = "238/86/52"  # GMT red
+elif color_concept == "bw" and bg_concept == "light":
+    color_blue = color_yellow = color_red = "gray20"
+elif color_concept == "bw" and bg_concept == "dark":
+    color_blue = color_yellow = color_red = "white"
+
+match bg_concept:
+    case "light":
+        color_bg = "white"
+        color_py = color_blue
+        color_gmt = "gray20"
+    case "dark":
+        color_bg = "gray20"
+        color_py = color_yellow
+        color_gmt = "white"
+
+
+# -----------------------------------------------------------------------------
+# Not-changebale settings (-> need to extended)
+# -----------------------------------------------------------------------------
+size = 5
+region = [-size, size] * 2
+
+xy_yellow_1 = 2.65
+xy_yellow_2 = 1.3
+
+pen_yellow = f"5p,{color_yellow}"
+pen_red = f"10p,{color_red}"
+
+
+# %%
+
+# -----------------------------------------------------------------------------
+# Start plotting
+# -----------------------------------------------------------------------------
+
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+# Creating the visual
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+fig = pygmt.Figure()
+pygmt.config(MAP_FRAME_PEN="cyan@100")
+fig.basemap(region=region, projection=f"X{size * 2}c", frame=[0, "+gcyan@100"])
+
+# .............................................................................
+# blue circle / hexagon for Earth
+# .............................................................................
+match shape:
+    case "circle":
+        style = "c7.5c"
+    case "hexagon":
+        style = "h8.6c"
+fig.plot(x=0, y=0, style=style, pen=f"15p,{color_blue}", fill=color_bg)
+
+# .............................................................................
+# yellow lines for compass
+# .............................................................................
+# horizontal yellow line
+fig.plot(x=[-4, 4], y=[0, 0], pen=pen_yellow)
+# diagonal yellow lines
+# upper left
+fig.plot(x=[-xy_yellow_1, -xy_yellow_2], y=[xy_yellow_1, xy_yellow_2], pen=pen_yellow)
+# lower right
+fig.plot(x=[xy_yellow_2, xy_yellow_1], y=[-xy_yellow_2, -xy_yellow_1], pen=pen_yellow)
+# lower left
+fig.plot(x=[-xy_yellow_1, -xy_yellow_2], y=[-xy_yellow_1, -xy_yellow_2], pen=pen_yellow)
+# upper right
+fig.plot(x=[xy_yellow_2, xy_yellow_1], y=[xy_yellow_2, xy_yellow_1], pen=pen_yellow)
+
+# .............................................................................
+# letter G
+# .............................................................................
+# horizontal red line
+fig.plot(x=[0.1, 1.65], y=[0, 0], pen=f"12p,{color_red}")
+# red ring sector
+fig.plot(x=0, y=0, style="w3.3c/90/0+i2.35c", fill=color_red)
+# space between yellow lines and ring sector
+fig.plot(x=0, y=0, style="w3.7c/0/360+i3.3c", fill=color_bg)
+# vertical yellow line
+fig.plot(x=[0, 0], y=[-4, 4], pen=f"6p,{color_yellow}")
+# cover yellow line in lower part of the ring sector
+fig.plot(x=0, y=0, style="w3.3c/260/-80+i2.35c", fill=color_red)
+
+# .............................................................................
+# upper vertical red line
+# .............................................................................
+# space between red line and blue circle / hexagon
+fig.plot(x=[0, 0], y=[4.01, 3.0], pen=f"18p,{color_bg}")
+# red line
+fig.plot(x=[0, 0], y=[4.00, 1.9], pen=f"12p,{color_red}")
+
+# .............................................................................
+# letter M
+# .............................................................................
+# space between letter M and yellow line at the right side
+fig.plot(x=[1.6, 1.6], y=[1.5, 1.775], pen=f"10p,{color_bg}")
+# fig.plot(x=[1.6, 1.6], y=[1.5, 2.0], pen=f"10p,{color_bg}")
+# diagonal lines
+fig.plot(x=[0.33, 0.90], y=[1.527, 1.00], pen=pen_red)
+fig.plot(x=[0.90, 1.43], y=[1.00, 1.527], pen=pen_red)
+# middle pick
+fig.plot(x=0.9, y=0.9, style="d0.3c", fill=color_red)
+# vertical lines with small distance to horizontal line of letter G
+fig.plot(x=[0.285, 0.285], y=[0.30, 1.65], pen=pen_red)
+fig.plot(x=[1.47, 1.47], y=[0.30, 1.65], pen=pen_red)
+
+# .............................................................................
+# letter T
+# .............................................................................
+# red curved horizontal line
+fig.plot(x=0, y=0, style="w4.6c/240/-60+i3.7c", fill=color_red)
+# vertical endings of curved horizontal line
+fig.plot(x=[-1.05, -1.05], y=[-1.5, -2.5], pen=f"9p,{color_bg}")
+fig.plot(x=[1.05, 1.05], y=[-1.5, -2.5], pen=f"9p,{color_bg}")
+# arrow head as inverse triangle with pen for space to blue circle / hexagon
+fig.plot(x=0, y=-3.55, style="i1.1c", fill=color_red, pen=f"3p,{color_bg}")
+# arrow tail
+fig.plot(x=[0, 0], y=[-2, -3.57], pen=f"12p,{color_red}")
+
+# .............................................................................
+# Save
+# .............................................................................
+# fig.show()
+fig_name = f"pygmt_logo_{shape}_{color_concept}_{bg_concept}"
+fig.savefig(fname=f"{fig_name}.eps", dpi=dpi_png)
+print(fig_name)
+
+
+# %%
+
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+# Replot and apply rotation
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+fig = pygmt.Figure()
+pygmt.config(MAP_FRAME_PEN="cyan@100")
+fig.basemap(region=region, projection=f"X{size * 2}c", frame=[0, f"+g{color_bg}"])
+
+fig.image(
+    imagefile=f"{fig_name}.eps",
+    position=f"jMC+w{size * 2}c",
+    # Rotation around z (vertical) axis placed in the center
+    perspective=f"{angle_rot}+w0/0",
+)
+
+# .............................................................................
+# Save
+# .............................................................................
+# fig.show()
+fig_name_rot = f"{fig_name}_rot{angle_rot}deg"
+exts = ["eps"] if wordmark is True else ["png", "pdf", "eps"]
+for ext in exts:
+    # transparent = True if ext == "png" else False  # problems with code style
+    transparent = False
+    if ext == "png":
+        transparent = True
+    fig.savefig(fname=f"{fig_name_rot}.{ext}", dpi=dpi_png, transparent=transparent)
+print(fig_name_rot)
+
+
+# %%
+
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+# Replot and add WordMark "PyGMT"
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+if wordmark is True:
+    match orientation:
+        case "vertical":
+            projection = f"X{size * 2 - 2}c/{size * 2}c"
+            position = f"jMC+w{size * 2}c+o0c/1.1c"
+            args_text = {"x": -3.6, "y": -3.6, "justify": "LM"}
+            args_cover = {"x": -2.4, "y": -3.6}
+        case "horizontal":
+            projection = f"X{size * 2}c/{size - 2}c"
+            position = f"jLM+w{size - 1.5}c"
+            args_text = {"x": -1.5, "y": 0, "justify": "LM"}
+            args_cover = {"x": -0.5, "y": -0.2}
+
+    fig = pygmt.Figure()
+    pygmt.config(MAP_FRAME_PEN="cyan@100")
+    fig.basemap(region=region, projection=projection, frame=[0, f"+g{color_bg}"])
+
+    fig.image(imagefile=f"{fig_name_rot}.eps", position=position)
+
+    fig.text(text="PyGMT", font=f"50p,AvantGarde-Book,{color_gmt}", **args_text)
+    fig.plot(style="s2.9c", fill=color_bg, **args_cover)
+    fig.text(text="Py", font=f"50p,AvantGarde-Book,{color_py}", **args_text)
+
+    # .............................................................................
+    # Save
+    # .............................................................................
+    fig_name_rot_text = f"{fig_name_rot}_wordmark_{orientation}"
+    for ext in ["png", "pdf", "eps"]:
+        # transparent = True if ext == "png" else False  # problems with code style
+        transparent = False
+        if ext == "png":
+            transparent = True
+        fig.savefig(
+            fname=f"{fig_name_rot_text}.{ext}", dpi=dpi_png, transparent=transparent
+        )
+    print(fig_name_rot_text)
+    Path.unlink(f"{fig_name_rot}.eps")
+
+
+# %%
+fig.show()
+Path.unlink(f"{fig_name}.eps")