nlbn 1.0.12

Fast and reliable EasyEDA/LCSC to KiCad converter with batch processing support
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196

use crate::converter::Converter;
use crate::error::Result;
use crate::kicad::footprint::*;
use crate::cli::KicadVersion;

pub struct FootprintExporter {
    converter: Converter,
}

impl FootprintExporter {
    pub fn new() -> Self {
        Self {
            converter: Converter::new(KicadVersion::V6),
        }
    }

    pub fn export(&self, footprint: &KiFootprint) -> Result<String> {
        let mut output = String::new();

        // Module header
        output.push_str(&format!("(footprint \"{}\" (version 20221018) (generator nlbn)\n", footprint.name));
        output.push_str("  (layer \"F.Cu\")\n");

        // Reference and value text
        output.push_str("  (fp_text reference \"REF**\" (at 0 0) (layer \"F.SilkS\")\n");
        output.push_str("    (effects (font (size 1 1) (thickness 0.15)))\n");
        output.push_str("  )\n");

        output.push_str(&format!("  (fp_text value \"{}\" (at 0 2.5) (layer \"F.Fab\")\n", footprint.name));
        output.push_str("    (effects (font (size 1 1) (thickness 0.15)))\n");
        output.push_str("  )\n");

        // Pads
        for pad in &footprint.pads {
            output.push_str(&self.format_pad(pad));
        }

        // Lines
        for line in &footprint.lines {
            output.push_str(&self.format_line(line));
        }

        // Circles
        for circle in &footprint.circles {
            output.push_str(&self.format_circle(circle));
        }

        // Arcs
        for arc in &footprint.arcs {
            output.push_str(&self.format_arc(arc));
        }

        // Texts
        for text in &footprint.texts {
            output.push_str(&self.format_text(text));
        }

        // 3D model
        if let Some(model) = &footprint.model_3d {
            output.push_str(&self.format_3d_model(model));
        }

        output.push_str(")\n");

        Ok(output)
    }

    fn format_pad(&self, pad: &KiPad) -> String {
        let x = self.converter.px_to_mm(pad.pos_x);
        let y = self.converter.px_to_mm(pad.pos_y);  // No flip_y for footprints
        let size_x = self.converter.px_to_mm(pad.size_x);
        let size_y = self.converter.px_to_mm(pad.size_y);

        let mut output = format!(
            "  (pad \"{}\" {} {} (at {:.4} {:.4}",
            pad.number,
            pad.pad_type.to_kicad(),
            pad.shape.to_kicad(),
            x,
            y
        );

        if pad.rotation != 0.0 {
            output.push_str(&format!(" {:.4}", pad.rotation));
        }

        output.push_str(&format!(") (size {:.4} {:.4})", size_x, size_y));

        // Layers
        output.push_str(" (layers");
        for layer in &pad.layers {
            output.push_str(&format!(" \"{}\"", layer));
        }
        output.push_str(")");

        // Drill
        if let Some(drill) = &pad.drill {
            let drill_dia = self.converter.px_to_mm(drill.diameter);
            if let Some(width) = drill.width {
                // Elliptical drill
                let drill_width = self.converter.px_to_mm(width);
                output.push_str(&format!(" (drill oval {:.4} {:.4})", drill_dia, drill_width));
            } else {
                // Circular drill
                output.push_str(&format!(" (drill {:.4})", drill_dia));
            }
        }

        // Polygon (for custom pads)
        if let Some(polygon) = &pad.polygon {
            output.push_str(polygon);
        }

        output.push_str(")\n");

        output
    }

    fn format_line(&self, line: &KiLine) -> String {
        let start_x = self.converter.px_to_mm(line.start_x);
        let start_y = self.converter.px_to_mm(line.start_y);  // No flip_y for footprints
        let end_x = self.converter.px_to_mm(line.end_x);
        let end_y = self.converter.px_to_mm(line.end_y);  // No flip_y for footprints
        let width = self.converter.px_to_mm(line.width);

        format!(
            "  (fp_line (start {:.4} {:.4}) (end {:.4} {:.4})\n    (stroke (width {:.4}) (type solid)) (layer \"{}\")\n  )\n",
            start_x, start_y, end_x, end_y, width, line.layer
        )
    }

    fn format_circle(&self, circle: &KiCircle) -> String {
        let center_x = self.converter.px_to_mm(circle.center_x);
        let center_y = self.converter.px_to_mm(circle.center_y);  // No flip_y for footprints
        let end_x = self.converter.px_to_mm(circle.end_x);
        let end_y = self.converter.px_to_mm(circle.end_y);  // No flip_y for footprints
        let width = self.converter.px_to_mm(circle.width);

        let fill = if circle.fill { "solid" } else { "none" };

        format!(
            "  (fp_circle (center {:.4} {:.4}) (end {:.4} {:.4})\n    (stroke (width {:.4}) (type solid)) (fill {}) (layer \"{}\")\n  )\n",
            center_x, center_y, end_x, end_y, width, fill, circle.layer
        )
    }

    fn format_arc(&self, arc: &KiArc) -> String {
        let start_x = self.converter.px_to_mm(arc.start_x);
        let start_y = self.converter.px_to_mm(arc.start_y);  // No flip_y for footprints
        let mid_x = self.converter.px_to_mm(arc.mid_x);
        let mid_y = self.converter.px_to_mm(arc.mid_y);  // No flip_y for footprints
        let end_x = self.converter.px_to_mm(arc.end_x);
        let end_y = self.converter.px_to_mm(arc.end_y);  // No flip_y for footprints
        let width = self.converter.px_to_mm(arc.width);

        format!(
            "  (fp_arc (start {:.4} {:.4}) (mid {:.4} {:.4}) (end {:.4} {:.4})\n    (stroke (width {:.4}) (type solid)) (layer \"{}\")\n  )\n",
            start_x, start_y, mid_x, mid_y, end_x, end_y, width, arc.layer
        )
    }

    fn format_text(&self, text: &KiText) -> String {
        let x = self.converter.px_to_mm(text.pos_x);
        let y = self.converter.px_to_mm(text.pos_y);  // No flip_y for footprints
        let size = self.converter.px_to_mm(text.size);
        let thickness = self.converter.px_to_mm(text.thickness);

        format!(
            "  (fp_text user \"{}\" (at {:.4} {:.4}",
            text.text, x, y
        ) + &(if text.rotation != 0.0 {
            format!(" {:.4}", text.rotation)
        } else {
            String::new()
        }) + &format!(
            ") (layer \"{}\")\n    (effects (font (size {:.4} {:.4}) (thickness {:.4})))\n  )\n",
            text.layer, size, size, thickness
        )
    }

    fn format_3d_model(&self, model: &Ki3dModel) -> String {
        format!(
            "  (model \"{}\"\n    (offset (xyz {:.4} {:.4} {:.4}))\n    (scale (xyz {:.4} {:.4} {:.4}))\n    (rotate (xyz {:.4} {:.4} {:.4}))\n  )\n",
            model.path,
            model.offset.0, model.offset.1, model.offset.2,
            model.scale.0, model.scale.1, model.scale.2,
            model.rotate.0, model.rotate.1, model.rotate.2
        )
    }
}

impl Default for FootprintExporter {
    fn default() -> Self {
        Self::new()
    }
}