47 lines
1.7 KiB
Arduino
47 lines
1.7 KiB
Arduino
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// Example for drawSmoothArc function.
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// Draws smooth arcs with rounded or square smooth ends
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#include <TFT_eSPI.h> // Include the graphics library
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TFT_eSPI tft = TFT_eSPI(); // Create object "tft"
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// -------------------------------------------------------------------------
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// Setup
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// -------------------------------------------------------------------------
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void setup(void) {
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Serial.begin(115200);
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tft.init();
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tft.setRotation(1);
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tft.fillScreen(TFT_BLACK);
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}
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// -------------------------------------------------------------------------
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// Main loop
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// -------------------------------------------------------------------------
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void loop()
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{
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static uint32_t count = 0;
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uint16_t fg_color = random(0x10000);
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uint16_t bg_color = TFT_BLACK; // This is the background colour used for smoothing (anti-aliasing)
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uint16_t x = random(tft.width()); // Position of centre of arc
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uint16_t y = random(tft.height());
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uint8_t radius = random(20, tft.width()/4); // Outer arc radius
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uint8_t thickness = random(1, radius / 4); // Thickness
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uint8_t inner_radius = radius - thickness; // Calculate inner radius (can be 0 for circle segment)
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// 0 degrees is at 6 o'clock position
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// Arcs are drawn clockwise from start_angle to end_angle
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uint16_t start_angle = random(361); // Start angle must be in range 0 to 360
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uint16_t end_angle = random(361); // End angle must be in range 0 to 360
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bool arc_end = random(2); // true = round ends, false = square ends (arc_end parameter can be omitted, ends will then be square)
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tft.drawSmoothArc(x, y, radius, inner_radius, start_angle, end_angle, fg_color, bg_color, arc_end);
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count++;
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if (count < 30) delay(500); // After 15s draw as fast as possible!
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}
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