41 lines
1.3 KiB
Rust
41 lines
1.3 KiB
Rust
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// SPDX-License-Identifier: GPL-3.0-or-later
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// src/constant.rs
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//
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// Application constants that should not be changed by the user.
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/// Rotation step in degrees (90 = quarter turn).
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pub const ROTATION_STEP: i16 = 90;
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/// Full rotation in degrees (for modulo calculation in angle normalization).
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pub const FULL_ROTATION: i16 = 360;
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/// Minutes per degree (GPS coordinate conversion: DMS to decimal degrees).
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pub const MINUTES_PER_DEGREE: f64 = 60.0;
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/// Seconds per degree (GPS coordinate conversion: DMS to decimal degrees).
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pub const SECONDS_PER_DEGREE: f64 = 3600.0;
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/// Minimum pixmap size for SVG rendering (prevents 0x0 images).
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pub const MIN_PIXMAP_SIZE: u32 = 1;
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/// Tolerance for scale comparisons (float precision in zoom synchronization).
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pub const SCALE_EPSILON: f32 = 0.0001;
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/// Tolerance for offset comparisons (float precision in pan synchronization).
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pub const OFFSET_EPSILON: f32 = 0.01;
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/// Maximum thumbnail width in pixels (nav bar page thumbnails).
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pub const THUMBNAIL_MAX_WIDTH: f32 = 100.0;
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/// Thumbnail cache directory name.
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pub const CACHE_DIR: &str = "noctua";
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/// Thumbnail file extension.
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pub const THUMBNAIL_EXT: &str = "png";
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/// Default render scale for PDF pages.
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pub const PDF_RENDER_SCALE: f64 = 2.0;
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/// Thumbnail render scale (smaller for quick rendering).
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pub const PDF_THUMBNAIL_SCALE: f64 = 0.25;
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