sklears_compose/pipeline_visualization/
core.rs

1//! Core pipeline visualization components
2//!
3//! This module provides the main visualization structures and functionality
4//! for rendering machine learning pipelines.
5
6use scirs2_core::ndarray::Array1;
7use sklears_core::{error::Result as SklResult, types::Float};
8use std::collections::HashMap;
9use std::time::Duration;
10
11/// Main pipeline visualizer that orchestrates the visualization process
12pub struct PipelineVisualizer {
13    /// Visualization configuration
14    config: VisualizationConfig,
15    /// Graph representation of the pipeline
16    graph: PipelineGraph,
17    /// Rendering engine
18    renderer: Box<dyn RenderingEngine>,
19    /// Export formats
20    export_formats: Vec<ExportFormat>,
21}
22
23/// Graph node representing a pipeline step
24#[derive(Debug, Clone)]
25pub struct GraphNode {
26    /// Node identifier
27    pub id: String,
28    /// Node type
29    pub node_type: String,
30    /// Node display name
31    pub name: String,
32    /// Node parameters
33    pub parameters: HashMap<String, ParameterValue>,
34    /// Input specifications
35    pub inputs: Vec<IoSpecification>,
36    /// Output specifications
37    pub outputs: Vec<IoSpecification>,
38    /// Visual properties
39    pub visual_properties: VisualProperties,
40}
41
42/// Visual properties for graph nodes
43#[derive(Debug, Clone)]
44pub struct VisualProperties {
45    /// Node color
46    pub color: Color,
47    /// Node shape
48    pub shape: NodeShape,
49    /// Node size
50    pub size: NodeSize,
51    /// Font properties
52    pub font: FontProperties,
53}
54
55/// Node shapes for visualization
56#[derive(Debug, Clone)]
57pub enum NodeShape {
58    /// Rectangle
59    Rectangle,
60    /// Circle
61    Circle,
62    /// Diamond
63    Diamond,
64    /// Ellipse
65    Ellipse,
66    /// RoundedRectangle
67    RoundedRectangle,
68}
69
70/// Node sizes
71#[derive(Debug, Clone)]
72pub enum NodeSize {
73    /// Small
74    Small,
75    /// Medium
76    Medium,
77    /// Large
78    Large,
79    /// Custom
80    Custom { width: f64, height: f64 },
81}
82
83/// Font properties for text rendering
84#[derive(Debug, Clone)]
85pub struct FontProperties {
86    /// Font family name
87    pub family: String,
88    /// Font size in points
89    pub size: f64,
90    /// Font weight
91    pub weight: FontWeight,
92    /// Font color
93    pub color: Color,
94}
95
96/// Font weights
97#[derive(Debug, Clone)]
98pub enum FontWeight {
99    /// Normal
100    Normal,
101    /// Bold
102    Bold,
103    /// Light
104    Light,
105}
106
107/// Graph representation of a pipeline
108pub struct PipelineGraph {
109    /// Graph nodes (pipeline steps)
110    nodes: Vec<GraphNode>,
111    /// Graph edges (data flow connections)
112    edges: Vec<GraphEdge>,
113    /// Graph layout information
114    layout: GraphLayout,
115}
116
117/// Configuration for pipeline visualization
118#[derive(Debug, Clone)]
119pub struct VisualizationConfig {
120    /// Theme settings
121    pub theme: VisualizationTheme,
122    /// Layout algorithm
123    pub layout_algorithm: LayoutAlgorithm,
124    /// Enable interactive features
125    pub interactive: bool,
126    /// Include performance metrics
127    pub show_metrics: bool,
128    /// Animation settings
129    pub animation: AnimationConfig,
130}
131
132/// Visualization themes
133#[derive(Debug, Clone)]
134pub enum VisualizationTheme {
135    /// Light
136    Light,
137    /// Dark
138    Dark,
139    /// HighContrast
140    HighContrast,
141    /// Custom
142    Custom(CustomTheme),
143}
144
145/// Custom theme configuration
146#[derive(Debug, Clone)]
147pub struct CustomTheme {
148    /// Background color
149    pub background_color: Color,
150    /// Node colors by type
151    pub node_colors: HashMap<String, Color>,
152    /// Edge color
153    pub edge_color: Color,
154    /// Text color
155    pub text_color: Color,
156    /// Accent colors
157    pub accent_colors: Vec<Color>,
158}
159
160/// Color representation
161#[derive(Debug, Clone)]
162pub struct Color {
163    pub r: u8,
164    pub g: u8,
165    pub b: u8,
166    pub a: f32,
167}
168
169/// Layout algorithms for graph positioning
170#[derive(Debug, Clone)]
171pub enum LayoutAlgorithm {
172    /// Force-directed layout
173    ForceDirected,
174    /// Hierarchical layout (top-down)
175    Hierarchical,
176    /// Circular layout
177    Circular,
178    /// Grid layout
179    Grid,
180    /// Custom positioning
181    Manual,
182}
183
184/// Animation configuration
185#[derive(Debug, Clone)]
186pub struct AnimationConfig {
187    /// Enable animations
188    pub enabled: bool,
189    /// Animation duration
190    pub duration: Duration,
191    /// Animation easing function
192    pub easing: EasingFunction,
193    /// Animate data flow
194    pub animate_data_flow: bool,
195}
196
197/// Easing functions for animations
198#[derive(Debug, Clone)]
199pub enum EasingFunction {
200    /// Linear
201    Linear,
202    /// EaseIn
203    EaseIn,
204    /// EaseOut
205    EaseOut,
206    /// EaseInOut
207    EaseInOut,
208    /// Bounce
209    Bounce,
210    /// Elastic
211    Elastic,
212}
213
214/// Graph layout information
215#[derive(Debug, Clone)]
216pub struct GraphLayout {
217    /// Canvas dimensions
218    pub width: f64,
219    pub height: f64,
220    /// Node positions
221    pub node_positions: HashMap<String, Position>,
222    /// Edge routing paths
223    pub edge_paths: HashMap<String, Vec<Position>>,
224    /// Zoom level
225    pub zoom: f64,
226    /// Pan offset
227    pub pan_offset: Position,
228}
229
230/// 2D position
231#[derive(Debug, Clone, Copy)]
232pub struct Position {
233    pub x: f64,
234    pub y: f64,
235}
236
237/// Edge connecting two nodes in the graph
238#[derive(Debug, Clone)]
239pub struct GraphEdge {
240    /// Edge identifier
241    pub id: String,
242    /// Source node ID
243    pub from_node: String,
244    /// Target node ID
245    pub to_node: String,
246    /// Edge properties
247    pub properties: EdgeProperties,
248    /// Data flow information
249    pub data_flow: DataFlowInfo,
250}
251
252/// Properties of graph edges
253#[derive(Debug, Clone)]
254pub struct EdgeProperties {
255    /// Edge color
256    pub color: Color,
257    /// Edge thickness
258    pub thickness: f64,
259    /// Edge style (solid, dashed, dotted)
260    pub style: EdgeStyle,
261    /// Show data flow animation
262    pub animated: bool,
263}
264
265/// Edge styles
266#[derive(Debug, Clone)]
267pub enum EdgeStyle {
268    /// Solid
269    Solid,
270    /// Dashed
271    Dashed,
272    /// Dotted
273    Dotted,
274    /// DashDot
275    DashDot,
276}
277
278/// Information about data flowing through an edge
279#[derive(Debug, Clone)]
280pub struct DataFlowInfo {
281    /// Data shape
282    pub shape: Vec<usize>,
283    /// Data type
284    pub dtype: String,
285    /// Sample data (for preview)
286    pub sample_data: Option<Array1<Float>>,
287    /// Flow rate (samples/sec)
288    pub flow_rate: Option<f64>,
289}
290
291/// Rendering engine trait for different output formats
292pub trait RenderingEngine: Send + Sync {
293    /// Render the pipeline graph
294    fn render(
295        &self,
296        graph: &PipelineGraph,
297        config: &VisualizationConfig,
298    ) -> SklResult<RenderedOutput>;
299
300    /// Get supported export formats
301    fn supported_formats(&self) -> Vec<ExportFormat>;
302
303    /// Set rendering options
304    fn set_options(&mut self, options: RenderingOptions);
305}
306
307/// Output of the rendering process
308pub struct RenderedOutput {
309    /// Rendered data (could be SVG, PNG, HTML, etc.)
310    pub data: Vec<u8>,
311    /// MIME type of the output
312    pub mime_type: String,
313    /// Metadata about the rendering
314    pub metadata: HashMap<String, String>,
315}
316
317/// Export formats supported by the visualizer
318#[derive(Debug, Clone)]
319pub enum ExportFormat {
320    /// Scalable Vector Graphics
321    SVG,
322    /// Portable Network Graphics
323    PNG,
324    /// JPEG image
325    JPEG,
326    /// PDF document
327    PDF,
328    /// HTML with interactive features
329    HTML,
330    /// JSON representation
331    JSON,
332}
333
334/// Rendering options for customization
335#[derive(Debug, Clone)]
336pub struct RenderingOptions {
337    /// Output resolution (for raster formats)
338    pub resolution: (u32, u32),
339    /// Output quality (0.0-1.0)
340    pub quality: f64,
341    /// Include metadata in output
342    pub include_metadata: bool,
343    /// Compression level
344    pub compression_level: u8,
345}
346
347impl PipelineVisualizer {
348    /// Create a new pipeline visualizer
349    #[must_use]
350    pub fn new(config: VisualizationConfig) -> Self {
351        Self {
352            config,
353            graph: PipelineGraph::new(),
354            renderer: Box::new(DefaultRenderingEngine::new()),
355            export_formats: vec![ExportFormat::SVG, ExportFormat::PNG, ExportFormat::HTML],
356        }
357    }
358
359    /// Add a pipeline to visualize
360    pub fn add_pipeline(&mut self, pipeline: &dyn PipelineComponent) -> SklResult<()> {
361        // Convert pipeline to graph representation
362        let nodes = self.extract_nodes(pipeline)?;
363        let edges = self.extract_edges(pipeline)?;
364
365        self.graph.nodes.extend(nodes);
366        self.graph.edges.extend(edges);
367
368        Ok(())
369    }
370
371    /// Generate visualization
372    pub fn visualize(&self) -> SklResult<RenderedOutput> {
373        self.renderer.render(&self.graph, &self.config)
374    }
375
376    /// Export visualization to file
377    pub fn export(&self, format: ExportFormat, path: &str) -> SklResult<()> {
378        let output = self.visualize()?;
379
380        // Save output to file (implementation would depend on the format)
381        std::fs::write(path, output.data)?;
382
383        Ok(())
384    }
385
386    /// Extract nodes from pipeline component
387    fn extract_nodes(&self, _pipeline: &dyn PipelineComponent) -> SklResult<Vec<GraphNode>> {
388        // Implementation would analyze the pipeline structure
389        // and create corresponding graph nodes
390        Ok(Vec::new())
391    }
392
393    /// Extract edges from pipeline component
394    fn extract_edges(&self, _pipeline: &dyn PipelineComponent) -> SklResult<Vec<GraphEdge>> {
395        // Implementation would analyze data flow between pipeline components
396        // and create corresponding graph edges
397        Ok(Vec::new())
398    }
399}
400
401/// Trait for components that can be visualized in a pipeline
402pub trait PipelineComponent {
403    /// Get component name
404    fn name(&self) -> &str;
405
406    /// Get component type
407    fn component_type(&self) -> &str;
408
409    /// Get input specifications
410    fn inputs(&self) -> Vec<IoSpecification>;
411
412    /// Get output specifications
413    fn outputs(&self) -> Vec<IoSpecification>;
414
415    /// Get component parameters
416    fn parameters(&self) -> HashMap<String, ParameterValue>;
417}
418
419/// I/O specification for pipeline components
420#[derive(Debug, Clone)]
421pub struct IoSpecification {
422    /// I/O name
423    pub name: String,
424    /// Data specification
425    pub data_spec: DataSpecification,
426    /// Whether this I/O is optional
427    pub optional: bool,
428}
429
430/// Data specification
431#[derive(Debug, Clone)]
432pub struct DataSpecification {
433    /// Data type
434    pub dtype: DataType,
435    /// Shape specification
436    pub shape: ShapeSpecification,
437    /// Value range (if applicable)
438    pub value_range: Option<(Float, Float)>,
439}
440
441/// Supported data types
442#[derive(Debug, Clone)]
443pub enum DataType {
444    /// Float32
445    Float32,
446    /// Float64
447    Float64,
448    /// Int32
449    Int32,
450    /// Int64
451    Int64,
452    /// Boolean
453    Boolean,
454    /// String
455    String,
456    /// Object
457    Object,
458}
459
460/// Shape specification for tensors
461#[derive(Debug, Clone)]
462pub enum ShapeSpecification {
463    /// Fixed shape
464    Fixed(Vec<usize>),
465    /// Variable shape with constraints
466    Variable { min_dims: usize, max_dims: usize },
467    /// Scalar value
468    Scalar,
469    /// Unknown shape
470    Unknown,
471}
472
473/// Parameter values that can be visualized
474#[derive(Debug, Clone)]
475pub enum ParameterValue {
476    /// String
477    String(String),
478    /// Integer
479    Integer(i64),
480    /// Float
481    Float(f64),
482    /// Boolean
483    Boolean(bool),
484    /// Array
485    Array(Vec<Float>),
486}
487
488impl Default for PipelineGraph {
489    fn default() -> Self {
490        Self::new()
491    }
492}
493
494impl PipelineGraph {
495    /// Create a new empty pipeline graph
496    #[must_use]
497    pub fn new() -> Self {
498        Self {
499            nodes: Vec::new(),
500            edges: Vec::new(),
501            layout: GraphLayout::default(),
502        }
503    }
504
505    /// Add a node to the graph
506    pub fn add_node(&mut self, node: GraphNode) {
507        self.nodes.push(node);
508    }
509
510    /// Add an edge to the graph
511    pub fn add_edge(&mut self, edge: GraphEdge) {
512        self.edges.push(edge);
513    }
514
515    /// Get nodes by type
516    #[must_use]
517    pub fn nodes_by_type(&self, node_type: &str) -> Vec<&GraphNode> {
518        self.nodes
519            .iter()
520            .filter(|n| n.node_type.as_str() == node_type)
521            .collect()
522    }
523}
524
525impl Default for GraphLayout {
526    fn default() -> Self {
527        Self {
528            width: 800.0,
529            height: 600.0,
530            node_positions: HashMap::new(),
531            edge_paths: HashMap::new(),
532            zoom: 1.0,
533            pan_offset: Position { x: 0.0, y: 0.0 },
534        }
535    }
536}
537
538/// Default rendering engine implementation
539pub struct DefaultRenderingEngine {
540    options: RenderingOptions,
541}
542
543impl Default for DefaultRenderingEngine {
544    fn default() -> Self {
545        Self::new()
546    }
547}
548
549impl DefaultRenderingEngine {
550    /// Create a new default rendering engine
551    #[must_use]
552    pub fn new() -> Self {
553        Self {
554            options: RenderingOptions {
555                resolution: (800, 600),
556                quality: 0.9,
557                include_metadata: true,
558                compression_level: 6,
559            },
560        }
561    }
562}
563
564impl RenderingEngine for DefaultRenderingEngine {
565    fn render(
566        &self,
567        _graph: &PipelineGraph,
568        _config: &VisualizationConfig,
569    ) -> SklResult<RenderedOutput> {
570        // Placeholder implementation
571        Ok(RenderedOutput {
572            data: b"<svg></svg>".to_vec(),
573            mime_type: "image/svg+xml".to_string(),
574            metadata: HashMap::new(),
575        })
576    }
577
578    fn supported_formats(&self) -> Vec<ExportFormat> {
579        vec![ExportFormat::SVG, ExportFormat::PNG, ExportFormat::HTML]
580    }
581
582    fn set_options(&mut self, options: RenderingOptions) {
583        self.options = options;
584    }
585}
sklears_compose/pipeline_visualization/core.rs

sklears_compose/pipeline_visualization/
core.rs
