Release NaraMotion v0.26.0: Structure of Arrays (SoA), Path Arena Allocator, Uniform Grid Indexing, Dual-Buffer Rendering & Centroid Spring Pop-in
b516e00 verified | """ | |
| NaraMotion Example 05: High Performance NumPy Interoperability & Vector HUD | |
| """ | |
| import math | |
| import os | |
| import numpy as np | |
| from naramotion import Image, Context, Format, Font, Circle, Rect | |
| def get_font(): | |
| for p in ["C:\\Windows\\Fonts\\segoeui.ttf", "C:\\Windows\\Fonts\\arial.ttf"]: | |
| if os.path.exists(p): | |
| return p | |
| return None | |
| def main(): | |
| width, height = 800, 600 | |
| img = Image(width, height, Format.PRGB32) | |
| # 1. Zero-Copy NumPy background generation (Plasma / Wave field) | |
| # Blend2D memory buffer is accessed directly without memory copies! | |
| buf = img.to_numpy(copy=False) | |
| y_coords, x_coords = np.mgrid[0:height, 0:width] | |
| cx, cy = width / 2.0, height / 2.0 | |
| r = np.sqrt((x_coords - cx) ** 2 + (y_coords - cy) ** 2) | |
| # Calculate plasma wave interference pattern | |
| plasma = np.sin(x_coords / 40.0) + np.sin(y_coords / 40.0) + np.sin(r / 25.0) | |
| norm = ((plasma + 3.0) / 6.0 * 255.0).astype(np.uint8) | |
| # BGRA channel filling | |
| buf[:, :, 0] = (norm * 0.4).astype(np.uint8) # B | |
| buf[:, :, 1] = (norm * 0.15).astype(np.uint8) # G | |
| buf[:, :, 2] = (norm * 0.25).astype(np.uint8) # R | |
| buf[:, :, 3] = 255 # A | |
| # 2. Blend2D Hardware Vector HUD Overlay | |
| with Context(img) as ctx: | |
| # Crosshairs and radar rings | |
| ctx.stroke_width = 1.5 | |
| ctx.stroke_circle(400, 300, 180, "#38BDF866") | |
| ctx.stroke_circle(400, 300, 100, "#38BDF888") | |
| ctx.stroke_circle(400, 300, 40, "#38BDF8AA") | |
| ctx.stroke_line(150, 300, 650, 300, "#38BDF844") | |
| ctx.stroke_line(400, 50, 400, 550, "#38BDF844") | |
| # Rotating target reticle | |
| with ctx.push_state(): | |
| ctx.translate(400, 300) | |
| ctx.rotate_deg(45.0) | |
| ctx.stroke_width = 3.0 | |
| ctx.stroke_round_rect(-70, -70, 140, 140, 12, "#38BDF8") | |
| # Data markers | |
| font_path = get_font() | |
| if font_path: | |
| font = Font.from_file(font_path, 16.0) | |
| ctx.fill_text(420, 280, font, "TARGET ACQUIRED: NUMPY 0-COPY", "#38BDF8") | |
| ctx.fill_text(420, 320, font, f"RES: {width}x{height} | PRGB32", "#94A3B8") | |
| os.makedirs("output", exist_ok=True) | |
| out_file = "output/05_numpy_vector_overlay.png" | |
| img.write_to_file(out_file) | |
| print(f"Saved: {out_file}") | |
| if __name__ == "__main__": | |
| main() | |