What This Drawing Measures
Upload daily OHLC data, choose Draw, and tap or click two different points inside the chart. The segment joins your chosen pixels; it does not snap to a candle, identify a high or low, or validate support and resistance. Use Select or the line table to choose a segment for deletion. Up to 20 lines are supported.
Why a Screen Angle Is Not Trend Strength
The horizontal axis gives every uploaded row equal space. The vertical axis maps the data range to a linear-price plot. Changing the number of rows, the price range, or the aspect ratio changes how a market move appears. A 45-degree line cannot establish a sustainable trend, and a steeper line is not evidence of an imminent reversal.
This implementation keeps a fixed 800 × 400 logical frame and scales the complete image uniformly to the available width. Saved lines therefore stay aligned with the same imported series when the viewport changes. This stabilizes the drawing; it does not make its angles comparable with another chart’s scale.
Angle Convention
A segment’s orientation is measured from the horizontal, read left to right, between −90 and 90 degrees. Vertical lines are labeled 90 degrees without a market direction. Reversing the drawing order leaves the same orientation. Between two segments the table reports the smaller undirected angle, from 0 to 90 degrees. It does not report a wedge probability or a pattern classification.
Data and Storage
Use ascending daily YYYY-MM-DD dates with positive finite OHLC values, open and close within each high-low range, and 2–5,000 rows. Import is limited to 2 MiB. The initial 20-row series is synthetic and has no instrument identity. A successful new import clears lines because their coordinates belong to the old series; invalid files leave the current project intact.
The page attempts to save the data and lines as one local browser project. Storage errors are displayed. Browser storage is not encrypted backup and can be cleared; no file is sent to a server by this tool. Older saved pixel coordinates have no recorded frame size and are preserved in their old storage keys without being interpreted as valid new drawings.
Export and Review
Finish or cancel the current segment before exporting a flattened PNG. A drawing is an annotation, not a backtest or trade instruction. If you want to test a strategy, specify the data-coordinate rules, signal timing, entries, exits, sizing, and costs independently. This tool neither generates Pine Script from lines nor places orders.