feat: expand slicing and gcode workflow UI

app.py

@@ -11,7 +11,7 @@ from tiff_to_gcode import generate_snake_path_gcode
 
 
 ViewerState = dict[str, Any]
-SAMPLE_STL_FILENAMES = ("Hollow_Pyramid.stl", "balanced_die.stl", "halfsphere.stl")
+SAMPLE_STL_FILENAMES = ("Hollow_Pyramid.stl", "Rounded_Cube_Through_Holes.stl", "halfsphere.stl")
 SAMPLE_STL_DIR = Path(__file__).resolve().parent / "sample_stls"
 APP_CSS = """
 .gradio-container {
@@ -105,7 +105,21 @@ APP_HEAD = """
 
 def _read_slice_preview(path: str) -> Image.Image:
     with Image.open(path) as image:
-        return image.copy()
+        preview = image.copy()
+
+    # Upscale low-resolution TIFF previews so they fill the viewer area better.
+    min_display_side = 480
+    width, height = preview.size
+    max_dim = max(width, height)
+    if max_dim > 0 and max_dim < min_display_side:
+        scale = min_display_side / max_dim
+        new_size = (
+            max(1, int(round(width * scale))),
+            max(1, int(round(height * scale))),
+        )
+        preview = preview.resize(new_size, resample=Image.Resampling.NEAREST)
+
+    return preview
 
 
 def _empty_state() -> ViewerState:
@@ -272,6 +286,7 @@ def run_all_tiff_to_gcode(
     pressure3: float,
     valve3: float,
     port3: float,
+    layer_height: float = 0.8,
 ) -> tuple[str | None, str | None, str | None, str]:
     specs = [
         (1, zip1, pressure1, valve1, port1),
@@ -298,6 +313,7 @@ def run_all_tiff_to_gcode(
                 pressure=float(pressure),
                 valve=int(valve),
                 port=int(port),
+                layer_height=float(layer_height),
             )
             outputs[idx - 1] = str(gcode_path)
             messages.append(f"Shape {idx}: wrote `{gcode_path.name}`.")
@@ -363,8 +379,8 @@ def build_demo() -> gr.Blocks:
 
             # --- Shared slicing controls ---
             with gr.Row():
-                layer_height = gr.Number(label="Layer Height", value=0.1, minimum=0.0001, step=0.01)
-                pixel_size = gr.Number(label="Pixel Size", value=0.05, minimum=0.0001, step=0.01)
+                layer_height = gr.Number(label="Layer Height", value=0.8, minimum=0.0001, step=0.01)
+                pixel_size = gr.Number(label="Pixel Size", value=0.8, minimum=0.0001, step=0.01)
                 generate_button = gr.Button("Generate TIFF Stacks", variant="primary")
 
             # --- Per-object slice browsers ---
@@ -586,6 +602,7 @@ def build_demo() -> gr.Blocks:
                     gcode_pressure_3,
                     gcode_valve_3,
                     gcode_port_3,
+                    layer_height,
                 ],
                 outputs=[gcode_file_1, gcode_file_2, gcode_file_3, gcode_status],
             )

sample_stls/{balanced_die.stl → Rounded_Cube_Through_Holes.stl}

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ab44f41e24a89485a01ece1a59f2d14b768bfed3a65a0fb70c7c9a6053b65a55
-size 553700
+oid sha256:e0d8a159cc44350ea75c63699960216a7f097ccd2321698918c1bd5bace49510
+size 2299409

tiff_to_gcode.py

@@ -169,6 +169,7 @@ def generate_snake_path_gcode(
     pressure: float,
     valve: int,
     port: int,
+    layer_height: float = 0.8,
     fil_width: float = 0.8,
     invert: bool = True,
     increase_pressure_per_layer: float = 0.1,
@@ -256,7 +257,7 @@ def generate_snake_path_gcode(
 
         if layers > 0:
             gcode_list.append(
-                {"X": shift_y, "Y": shift_x, "Z": fil_width, "Color": 0}
+                {"X": shift_y, "Y": shift_x, "Z": layer_height, "Color": 0}
             )
 
         for row in current_image_ref:
@@ -308,7 +309,7 @@ def generate_snake_path_gcode(
             move_type = "G0" if cur_color != off_color else "G1"
             if "Z" in move:
                 line = (
-                    f"{move_type} X{move['X']} Y{move['Y']} Z{fil_width} "
+                    f"{move_type} X{move['X']} Y{move['Y']} Z{move['Z']} "
                     f"; Color {move['Color']}"
                 )
                 pressure_cur += increase_pressure_per_layer