Add scaling options to BigFig.

packages/Floats.sty

@@ -48,6 +48,7 @@
 \NewDocumentCommand{\BigFloatOffset}{}{\fp_use:N \c_BigFloat_offset_fp}
 
 \clist_new:N \l_BigFloat_placement_clist
+\dim_new:N \l_BigFloat_workoverhang_dim
 
 \keys_define:nn{BigFloat}{
 	type		.choices:nn	= {figure,generic,table}{
@@ -67,6 +68,9 @@
 	offset		.fp_set:N	= \l_BigFloat_offset_fp,
 	offset		.default:e	= {\c_BigFloat_offset_fp},
 	offset		.initial:e	= {\c_BigFloat_offset_fp},
+
+	maxoverhang	.dim_set:N	= \l_BigFloat_maxoverhang_dim,
+	maxoverhang	.initial:n	= {1in},
 }
 
 \NewDocumentEnvironment{BigFloat}{
@@ -79,16 +83,18 @@
 	\clist_use_default:Nnnn \l_BigFloat_placement_str
 		{\l_BigFloat_placement_clist}
 		{\c_BigFloat_placement_clist}
+	\dim_set:Nn \l_BigFloat_workoverhang_dim {
+		\dim_min:nn {\l_BigFloat_overhang_dim} {\l_BigFloat_maxoverhang_dim}
+	}
 	\ExpEnvOption%
 	\begin{\l_BigFloat_type_str}[\l_BigFloat_placement_str]% float environment
 		\begin{SmartAdjustWidth}{%
-
 			\fp_to_dim:n {
-				-\l_BigFloat_overhang_dim
+				-\l_BigFloat_workoverhang_dim
 			}%
 		}{%
 			\fp_to_dim:n {%
-				-\l_BigFloat_overhang_dim
+				-\l_BigFloat_workoverhang_dim
 				* \l_BigFloat_offset_fp
 			}%
 		}%
@@ -102,6 +108,7 @@
 			\end{minipage}%
 		\end{SmartAdjustWidth}%
 	\end{\l_BigFloat_type_str}%
+	\dim_set:Nn \l_BigFloat_overhang_dim {\c_BigFloat_overhang_dim}
 }{}
 
 \clist_const:Nn \c_CenterFig_placement_clist {h, t, p, b}
@@ -139,10 +146,23 @@
 	\end{figure}%
 }
 
+%\fp_const:Nn \c_BigFig_graphicdpi_fp {72.0}
+
 \keys_define:nn{}{
 	BigFig	.inherit:n	= BigFloat,
 }
 
+\keys_define:nn{BigFig}{
+	hres	.fp_set:N		= \l_BigFig_hres_fp,
+	hres	.initial:n		= {0},
+
+	dpi		.fp_set:N		= \l_BigFig_dpi_fp,
+	dpi		.initial:n		= {96},%{\c_BigFig_dpi_fp},
+
+	scale	.fp_set:N		= \l_BigFig_scale_fp,
+	scale	.initial:n		= {1},
+}
+
 \NewDocumentCommand{\BigFig}{
 	% Key=value options.
 	O{}
@@ -154,6 +174,20 @@
 	m
 }{%
 	\keys_set:nn{BigFig}{#1}
+	\fp_compare:nNnF {\l_BigFig_hres_fp} = {0} {
+		\dim_set:Nn \l_BigFloat_overhang_dim {
+			\dim_eval:n{
+				(\fp_to_dim:n{
+					  \l_BigFig_scale_fp
+					* \l_BigFig_hres_fp
+					/ \l_BigFig_dpi_fp
+					* 72.27
+				}
+				- \linewidth)
+			/ 3}
+		}
+		%\dim_show:N \l_BigFloat_overhang_dim
+	}{}
 	\begin{BigFloat}[
 		type		= figure,
 		overhang	= \l_BigFloat_overhang_dim,
@@ -170,11 +204,9 @@
 \keys_define:nn{DoubleBigFig}{
 	overhang	.dim_set:N	= \l_DoubleBigFig_overhang_dim,
 	overhang	.initial:e	= {\c_BigFloat_overhang_dim},
-%	overhang	.default:e	= {\c_BigFloat_overhang_dim},
 
 	offset		.fp_set:N	= \l_DoubleBigFig_offset_fp,
 	offset		.initial:e	= {\c_BigFloat_offset_fp},
-%	offset		.default:e	= {\c_BigFloat_offset_fp},
 }
 
 \NewDocumentCommand{\DoubleBigFig}{%