def __init__(self):
super().__init__(application_id="com.github.alexhuntley.Plots")
self.scale = self._target_scale = self.INIT_SCALE
self._translation = np.array([0, 0], 'f')
self.vertex_template = jinja_env.get_template('vertex.glsl')
self.fragment_template = jinja_env.get_template('fragment.glsl')
self.rows = []
self.slider_rows = []
self.history = []
self.history_position = 0 # index of the last undone command / next in line for redo
self.overlay_source = None
class Formula(RowData):
priority = 20
calculation_template = jinja_env.get_template("formula_calculation.glsl")
def __init__(self, expr, body, rgba):
m = re.match(r'^(?:y *=)?(.+)', expr)
self.expr = m.group(1)
self.body = body
self.rgba = rgba
def definition(self):
return f"""float formula{self.id()}(float x) {{
{self.body}
return {self.expr};
}}"""
def calculation(self):
return self.calculation_template.render(formula=self)
@staticmethod
def accepts(expr):
m = re.match(r'^(?:y *=)?(.+)', expr)
return m and "=" not in m.group(1)