If you are moving the line towards the center of the grid, the nearest parallel line doesn't move, and the distance between the line you are moving and the nearest parallel line grows smaller.
1	If	if	SCONJ	_	_	4	mark	_	_
2	you	you	PRON	PERS-P2	_	4	nsubj	_	_
3	are	be	AUX	PRES-AUX	Mood=Ind|Tense=Pres|VerbForm=Fin	4	aux	_	_
4	moving	move	VERB	ING	Tense=Pres|VerbForm=Part	20	advcl	_	_
5	the	the	DET	DEF	Definite=Def|PronType=Art	6	det	_	_
6	line	line	NOUN	SG-NOM	Number=Sing	4	obj	_	_
7	towards	towards	ADP	_	_	9	case	_	_
8	the	the	DET	DEF	Definite=Def|PronType=Art	9	det	_	_
9	center	center	NOUN	SG-NOM	Number=Sing	4	obl	_	_
10	of	of	ADP	_	_	12	case	_	_
11	the	the	DET	DEF	Definite=Def|PronType=Art	12	det	_	_
12	grid	grid	NOUN	SG-NOM	Number=Sing	9	nmod	_	SpaceAfter=No
13	,	,	PUNCT	Comma	_	4	punct	_	_
14	the	the	DET	DEF	Definite=Def|PronType=Art	17	det	_	_
15	nearest	near	ADV	SPL	Case=Nom	16	advmod	_	_
16	parallel	parallel	ADJ	POS	Degree=Pos	17	amod	_	_
17	line	line	NOUN	SG-NOM	Number=Sing	20	nsubj	_	_
18	does	do	AUX	PRES	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	20	aux	_	SpaceAfter=No
19	n't	not	PART	NEG	_	20	advmod	_	_
20	move	move	VERB	INF	VerbForm=Inf	0	root	_	SpaceAfter=No
21	,	,	PUNCT	Comma	_	36	punct	_	_
22	and	and	CCONJ	_	_	36	cc	_	_
23	the	the	DET	DEF	Definite=Def|PronType=Art	24	det	_	_
24	distance	distance	NOUN	SG-NOM	Number=Sing	36	nsubj	_	_
25	between	between	ADP	_	_	27	case	_	_
26	the	the	DET	DEF	Definite=Def|PronType=Art	27	det	_	_
27	line	line	NOUN	SG-NOM	Number=Sing	24	nmod	_	_
28	you	you	PRON	PERS-P2	_	30	nsubj	_	_
29	are	be	AUX	PRES-AUX	Mood=Ind|Tense=Pres|VerbForm=Fin	30	aux	_	_
30	moving	move	VERB	ING	Tense=Pres|VerbForm=Part	27	acl:relcl	_	_
31	and	and	CCONJ	_	_	35	cc	_	_
32	the	the	DET	DEF	Definite=Def|PronType=Art	35	det	_	_
33	nearest	near	ADV	SPL	Case=Nom	34	advmod	_	_
34	parallel	parallel	ADJ	POS	Degree=Pos	35	amod	_	_
35	line	line	NOUN	SG-NOM	Number=Sing	27	conj	_	_
36	grows	grow	VERB	PRES	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	20	conj	_	_
37	smaller	small	ADJ	CMP	Degree=Cmp	36	xcomp	_	SpaceAfter=No
38	.	.	PUNCT	Period	_	20	punct	_	_
