.. _line: line ======================================================= Line model ========== =============================== =========== ============= Parameter Description Units Default value ========== =============================== =========== ============= scale Scale factor or Volume fraction None 1 background Source background |cm^-1| 0.001 intercept intercept in linear model |cm^-1| 1 slope slope in linear model |Ang*cm^-1| 1 ========== =============================== =========== ============= The returned value is scaled to units of |cm^-1| |sr^-1|, absolute scale. This model calculates intensity using simple linear function **Definition** The scattering intensity $I(q)$ is calculated as .. math:: I(q) = \text{scale} (A + B \cdot q) + \text{background} .. note:: For 2D plots intensity has different definition than other shape independent models .. math:: I(q) = \text{scale} (I(qx) \cdot I(qy)) + \text{background} .. figure:: img/line_autogenfig.png 1D plot corresponding to the default parameters of the model. **Source** :download:`line.py ` **References** None. **Authorship and Verification** * **Author:** * **Last Modified by:** * **Last Reviewed by:**